Watch List notes:

COINS, 錢幣, CHINA – TAIWAN, 中國 - 台灣, Taiwan 台灣: "Old Man" Silver Dollar 老公銀, ND (1841-50), Obv God of Longevity, "官局" at five o'clock, Rev cauldron, assayer's chop "成記" below, 26.72g (L&M 320; Kann 1h). Well-defined with several chopmarks on each side, very fine and a rare variety.
ex Hong Kong Coin Auction 31, Baldwin / Ma Tak Wo / Gillio / Monetarium, 31 August 2000, lot 230

Estimate: US$4,000-5,000