AUCTION  / 

Accumulations & Collections Auction 1

Auction CurrencyUSD Auction Location2585 Sebastopol Road #7386, Santa Rosa, California, 95407, United States

Auction Details

SARC (Stephen Album Rare Coins)
Accumulations & Collections Auction 1
Monday, February 24, 2025

Some of these lots are very heavy, so please contact us for shipping estimates!

We do realize that there are currently 2 lots with no images. We will add images for those soon.
PLEASE NOTE: You must request a bid limit when you register. If you would like to have a large bid limit, you must provide adequate references, or you must have previously established strong credit history with our company. Late registration may result in delayed approval.
< Prev# Rows102050100Next >123456789101112131415
 Choose Your Layout > Switch to Grid View Switch to List View
THAILAND: LOT of 95 porcelain tokens601 - THAILAND: LOT of 95 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 95 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (950.00 + 190.00BP) = 1,140.00
 
Details...Bookmark
THAILAND: LOT of 88 porcelain tokens602 - THAILAND: LOT of 88 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 88 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (1,200.00 + 240.00BP) = 1,440.00
 
Details...Bookmark
THAILAND: LOT of 93 porcelain tokens603 - THAILAND: LOT of 93 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 93 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (650.00 + 130.00BP) = 780.00
 
Details...Bookmark
THAILAND: LOT of 90 porcelain tokens604 - THAILAND: LOT of 90 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 90 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (950.00 + 190.00BP) = 1,140.00
 
Details...Bookmark
THAILAND: LOT of 85 porcelain tokens605 - THAILAND: LOT of 85 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 85 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (750.00 + 150.00BP) = 900.00
 
Details...Bookmark
THAILAND: LOT of 83 porcelain tokens606 - THAILAND: LOT of 83 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 83 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (800.00 + 160.00BP) = 960.00
 
Details...Bookmark
THAILAND: LOT of 80 porcelain tokens607 - THAILAND: LOT of 80 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 80 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (800.00 + 160.00BP) = 960.00
 
Details...Bookmark
THAILAND: LOT of 95 porcelain tokens608 - THAILAND: LOT of 95 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 95 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (900.00 + 180.00BP) = 1,080.00
 
Details...Bookmark
THAILAND: LOT of 91 porcelain tokens609 - THAILAND: LOT of 91 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 91 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (650.00 + 130.00BP) = 780.00
 
Details...Bookmark
THAILAND: LOT of 94 porcelain tokens610 - THAILAND: LOT of 94 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 94 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (700.00 + 140.00BP) = 840.00
 
Details...Bookmark
THAILAND: LOT of 84 porcelain tokens611 - THAILAND: LOT of 84 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 84 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (750.00 + 150.00BP) = 900.00
 
Details...Bookmark
THAILAND: LOT of 98 porcelain tokens612 - THAILAND: LOT of 98 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 98 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (700.00 + 140.00BP) = 840.00
 
Details...Bookmark
THAILAND: LOT of 87 porcelain tokens613 - THAILAND: LOT of 87 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 87 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (850.00 + 170.00BP) = 1,020.00
 
Details...Bookmark
THAILAND: LOT of 100 porcelain tokens614 - THAILAND: LOT of 100 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 100 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (900.00 + 180.00BP) = 1,080.00
 
Details...Bookmark
THAILAND: LOT of 92 porcelain tokens615 - THAILAND: LOT of 92 porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 92 porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, made in various colors, shapes, sizes and with d
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (750.00 + 150.00BP) = 900.00
 
Details...Bookmark
THAILAND: LOT of 50 blue porcelain tokens616 - THAILAND: LOT of 50 blue porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 50 blue porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, all in blue and white, made in various shap
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (1,000.00 + 200.00BP) = 1,200.00
 
Details...Bookmark
THAILAND: LOT of 51 blue porcelain tokens617 - THAILAND: LOT of 51 blue porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 51 blue porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, all in blue and white, made in various shap
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (1,200.00 + 240.00BP) = 1,440.00
 
Details...Bookmark
THAILAND: LOT of 53 blue porcelain tokens618 - THAILAND: LOT of 53 blue porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 53 blue porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, all in blue and white, made in various shap
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (600.00 + 120.00BP) = 720.00
 
Details...Bookmark
THAILAND: LOT of 51 blue porcelain tokens619 - THAILAND: LOT of 51 blue porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 51 blue porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, all in blue and white, made in various shap
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (400.00 + 80.00BP) = 480.00
 
Details...Bookmark
THAILAND: LOT of 52 blue porcelain tokens620 - THAILAND: LOT of 52 blue porcelain tokens
Stephen Album Rare Coins
THAILAND: LOT of 52 blue porcelain tokens, made ca. 1760-1875 for Chinese gambling establishments in Siam, all in blue and white, made in various shap
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (1,300.00 + 260.00BP) = 1,560.00
 
Details...Bookmark
TUNISIA: LOT of 35 coins621 - TUNISIA: LOT of 35 coins
Stephen Album Rare Coins
TUNISIA: LOT of 35 coins, including KM-207, 208, 219, 220, 221, 222, 223, 224, 235, 236, 237, 238, 239, 242, 243, 244, 254, 255, 258 (2 pieces), 259,
Bidding Has Concluded
Estimate : 160.00 - 220.00
Sold for (240.00 + 48.00BP) = 288.00
 
Details...Bookmark
TUNISIA: LOT of 38 coins622 - TUNISIA: LOT of 38 coins
Stephen Album Rare Coins
TUNISIA: LOT of 38 coins, including KM-22, 30, 34 (3 pcs), 35, 42 (2), 44.1, 44.2, 46, 49, 52.1, 52.2, 55 (3, one tentative attribution), 57, 63 (2),
Bidding Has Concluded
Estimate : 400.00 - 500.00
Sold for (450.00 + 90.00BP) = 540.00
 
Details...Bookmark
VIETNAM: (VIET NAM / ANNAM): LOT of 131 coins623 - VIETNAM: (VIET NAM / ANNAM): LOT of 131 coins
Stephen Album Rare Coins
VIETNAM: (VIET NAM / ANNAM): LOT of 131 coins, a diverse group of cast square hole cash coins, a very interesting mix of types mostly worked up in pap
Bidding Has Concluded
Estimate : 100.00 - 200.00
Sold for (425.00 + 85.00BP) = 510.00
 
Details...Bookmark
CHINA: YUTIAN KINGDOM: LOT of 4 copper 6 zhu coins624 - CHINA: YUTIAN KINGDOM: LOT of 4 copper 6 zhu coins
Stephen Album Rare Coins
YUTIAN KINGDOM: LOT of 4 copper 6 zhu coins, Sino-Kharosthi series, ca. 2nd/3rd centuries AD: horse right, little left of the Kharosthi legend around
Bidding Has Concluded
Estimate : 200.00 - 250.00
Sold for (260.00 + 52.00BP) = 312.00
 
Details...Bookmark
CHINA: NORTHERN SONG: a string of about 317 cash coin (1186g)625 - CHINA: NORTHERN SONG: a string of about 317 cash coin (1186g)
Stephen Album Rare Coins
NORTHERN SONG: a string of about 317 cash coin (1186g), all 1-cash coins of various reign titles, average circulated conditions; string of about 317 c
Bidding Has Concluded
Estimate : 150.00 - 200.00
Sold for (280.00 + 56.00BP) = 336.00
 
Details...Bookmark
CHINA: NORTHERN SONG: LOT of 480 coins626 - CHINA: NORTHERN SONG: LOT of 480 coins
Stephen Album Rare Coins
NORTHERN SONG: LOT of 480 coins, all single cash coins of various reign titles and calligraphic varieties, housed in a large-format album; average qua
Bidding Has Concluded
Estimate : 250.00 - 350.00
Sold for (400.00 + 80.00BP) = 480.00
 
Details...Bookmark
CHINA: NORTHERN SONG: LOT of 480 coins627 - CHINA: NORTHERN SONG: LOT of 480 coins
Stephen Album Rare Coins
NORTHERN SONG: LOT of 480 coins, all single cash coins of various reign titles and calligraphic varieties, housed in a large-format album; average qua
Bidding Has Concluded
Estimate : 250.00 - 350.00
Sold for (400.00 + 80.00BP) = 480.00
 
Details...Bookmark
CHINA: NORTHERN SONG: LOT of 480 coins628 - CHINA: NORTHERN SONG: LOT of 480 coins
Stephen Album Rare Coins
NORTHERN SONG: LOT of 480 coins, all single cash coins of various reign titles and calligraphic varieties, housed in a large-format album; average qua
Bidding Has Concluded
Estimate : 250.00 - 350.00
Sold for (375.00 + 75.00BP) = 450.00
 
Details...Bookmark
CHINA: QING: Yong Zheng, 1723-1735, LOT of 9 AE cash629 - CHINA: QING: Yong Zheng, 1723-1735, LOT of 9 AE cash
Stephen Album Rare Coins
QING: Yong Zheng, 1723-1735, LOT of 9 AE cash, including 7 of Yunnan (various branch mints, from Yunnan-fu, Lin'an, Dongchuan), plus 1 each of B...
Bidding Has Concluded
Estimate : 250.00 - 350.00
Sold for (220.00 + 44.00BP) = 264.00
 
Details...Bookmark
CHINA: QING: a string of about 500 cash coins (1787g)630 - CHINA: QING: a string of about 500 cash coins (1787g)
Stephen Album Rare Coins
QING: a string of about 500 cash coins (1787g), all 1-cash coins of various reign titles, average circulated conditions; string of about 500 coins.
Bidding Has Concluded
Estimate : 250.00 - 350.00
Sold for (300.00 + 60.00BP) = 360.00
 
Details...Bookmark
CHINA: QING: a string of about 500 cash coins (1768g)631 - CHINA: QING: a string of about 500 cash coins (1768g)
Stephen Album Rare Coins
QING: a string of about 500 cash coins (1768g), all 1-cash coins of various reign titles, average circulated conditions; string of about 500 coins.
Bidding Has Concluded
Estimate : 250.00 - 350.00
Sold for (325.00 + 65.00BP) = 390.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 20 coins, Fine632 - CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 20 coins, Fine
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 20 coins, group of silver piastres including the following dates; 18xx, 1886, 1887, 1895 (2), 1896 (
Bidding Has Concluded
Estimate : 900.00 - 1,200.00
Sold for (850.00 + 170.00BP) = 1,020.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres633 - CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres, dated 1896, 1898, 1900, 1903, 1907, 1908, and 1913, all KM-5a.1 with a few
Bidding Has Concluded
Estimate : 400.00 - 500.00
Sold for (375.00 + 75.00BP) = 450.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres634 - CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres, dated 1896, 1899, 1900 (2), 1902, 1906, and 1908, all KM-5a.1 with a few t
Bidding Has Concluded
Estimate : 400.00 - 500.00
Sold for (350.00 + 70.00BP) = 420.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres635 - CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: FRENCH INDOCHINA: LOT of 7 chopmarked AR piastres, dated 1889, 1896, 1898, 1900, 1902, 1905, and 1908, all KM-5a.1 with a few
Bidding Has Concluded
Estimate : 400.00 - 500.00
Sold for (350.00 + 70.00BP) = 420.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: JAPAN: LOT of 2 chopmarked AR yens636 - CHINA: CHOPMARKED COINS: JAPAN: LOT of 2 chopmarked AR yens
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: JAPAN: LOT of 2 chopmarked AR yens, dated Meiji 23 (1890) and 28 (1895), both Y-A25.3 with large Chinese merchant chopmarks (
Bidding Has Concluded
Estimate : 75.00 - 100.00
Sold for (130.00 + 26.00BP) = 156.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: MEXICO: LOT of 3 chopmarked silver coins637 - CHINA: CHOPMARKED COINS: MEXICO: LOT of 3 chopmarked silver coins
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: MEXICO: LOT of 3 chopmarked silver coins, all Cap and Ray type, including 1871-Ca MM 8 reales (NGC XF Details Chopmarked, wit
Bidding Has Concluded
Estimate : 120.00 - 160.00
Sold for (140.00 + 28.00BP) = 168.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: LOT of 7 chopmarked 8 reales638 - CHINA: CHOPMARKED COINS: LOT of 7 chopmarked 8 reales
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: LOT of 7 chopmarked 8 reales, all Carlos II except two Fernando VII, all with Chinese merchant chopmarks except one, includin
Bidding Has Concluded
Estimate : 300.00 - 400.00
Sold for (450.00 + 90.00BP) = 540.00
 
Details...Bookmark
CHINA: CHOPMARKED COINS: MEXICO & PERU: Carlos III, 1759-1788, LOT of 9 chopmarked 8 reales639 - CHINA: CHOPMARKED COINS: MEXICO & PERU: Carlos III, 1759-1788, LOT of 9 chopmarked 8 reales
Stephen Album Rare Coins
CHINA: CHOPMARKED COINS: MEXICO & PERU: Carlos III, 1759-1788, LOT of 9 chopmarked 8 reales, all with several small Chinese merchant chopmarks, ...
Bidding Has Concluded
Estimate : 400.00 - 500.00
Sold for (600.00 + 120.00BP) = 720.00
 
Details...Bookmark
CHINA: KWANGTUNG: LOT of 21 silver coins640 - CHINA: KWANGTUNG: LOT of 21 silver coins
Stephen Album Rare Coins
KWANGTUNG: LOT of 21 silver coins, including 17 20 cents (eight of Kuang Hsu Y-201, the rest Republican Y-423 & Y-426) and 4 10 cents (Y-200); t...
Bidding Has Concluded
Estimate : 150.00 - 250.00
Sold for (160.00 + 32.00BP) = 192.00
 
Details...Bookmark
CHINA: SINKIANG: LOT of 23 coins641 - CHINA: SINKIANG: LOT of 23 coins
Stephen Album Rare Coins
SINKIANG: LOT of 23 coins, including 17 red cash (eight Qian Long, a few of them posthumous, five Jia Qing, one Dao Guang, three Guang Xu; mostly Aksu
Bidding Has Concluded
Estimate : 300.00 - 400.00
Sold for (350.00 + 70.00BP) = 420.00
 
Details...Bookmark
CHINA: SINKIANG: LOT of 11 coins642 - CHINA: SINKIANG: LOT of 11 coins
Stephen Album Rare Coins
SINKIANG: LOT of 11 coins, including Yarkand Khanate (2 coppers, both worn), Dzungar Khanate (2 tear drop-shaped puls, Tsewang Rabtan & Galdan T...
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (500.00 + 100.00BP) = 600.00
 
Details...Bookmark
CHINA: SINKIANG: LOT of 8 coins643 - CHINA: SINKIANG: LOT of 8 coins
Stephen Album Rare Coins
SINKIANG: LOT of 8 coins, including 6 tear drop-shaped AE pol of the Dzungar Khanate (all Galdan Tseren), an AR 1/2 miscal of Yakub Beg (AH12xx, VF+),
Bidding Has Concluded
Estimate : 150.00 - 250.00
Sold for (190.00 + 38.00BP) = 228.00
 
Details...Bookmark
CHINA: LOT of 21 coins644 - CHINA: LOT of 21 coins
Stephen Album Rare Coins
CHINA: LOT of 21 coins, including Empire (3 pcs), Republic (1, year 3 [1914] 10 cents F-VF small obverse scratch), Fukien (2, including CD1924 Y-381.4
Bidding Has Concluded
Estimate : 200.00 - 280.00
Sold for (325.00 + 65.00BP) = 390.00
 
Details...Bookmark
CHINA: LOT of 4 coins645 - CHINA: LOT of 4 coins
Stephen Album Rare Coins
CHINA: LOT of 4 coins, includes PCGS graded coins, Kiangnan 20 cents CD1901 L&M-238 VF-30, Kwangtung 10 cents ND (18u90-1908) L&M-136 AU-55,...
Bidding Has Concluded
Estimate : 120.00 - 200.00
Sold for (130.00 + 26.00BP) = 156.00
 
Details...Bookmark
CHINA: LOT of 100 cash coins & charms646 - CHINA: LOT of 100 cash coins & charms
Stephen Album Rare Coins
CHINA: LOT of 100 cash coins & charms, including several better pieces, with 7 from Warring States to Tang (incl. a chang ping wu zhu), 5 of Tan...
Bidding Has Concluded
Estimate : 400.00 - 600.00
Sold for (475.00 + 95.00BP) = 570.00
 
Details...Bookmark
CHINA: LOT of 71 cash coins647 - CHINA: LOT of 71 cash coins
Stephen Album Rare Coins
CHINA: LOT of 71 cash coins, from a variety of dynasties, including Western Han (11, inc. 9 elm seed money, corroded), Xin (3), Three Kingdoms (1, din
Bidding Has Concluded
Estimate : 300.00 - 500.00
Sold for (325.00 + 65.00BP) = 390.00
 
Details...Bookmark
CHINA: LOT of 20 coins648 - CHINA: LOT of 20 coins
Stephen Album Rare Coins
CHINA: LOT of 20 coins, including Provincial (9): Fukien (AR 10 cents 1928, Huanghuagang Canton Martyrs Commemorative, EF lightly cleaned), Kiangsi, K
Bidding Has Concluded
Estimate : 250.00 - 350.00
Sold for (260.00 + 52.00BP) = 312.00
 
Details...Bookmark
CHINA: LOT of 27 mother of pearl tokens649 - CHINA: LOT of 27 mother of pearl tokens
Stephen Album Rare Coins
CHINA: LOT of 27 mother of pearl tokens, made ca. 1720-1840 in China and used in Britain and America as gaming counters and gambling chips, made in va
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (240.00 + 48.00BP) = 288.00
 
Details...Bookmark
CHINA: LOT of 26 mother of pearl tokens650 - CHINA: LOT of 26 mother of pearl tokens
Stephen Album Rare Coins
CHINA: LOT of 26 mother of pearl tokens, made ca. 1720-1840 in China and used in Britain and America as gaming counters and gambling chips, made in va
Bidding Has Concluded
Estimate : 200.00 - 300.00
Sold for (220.00 + 44.00BP) = 264.00
 
Details...Bookmark