Stack's Bowers Galleries, April 2016 Hong Kong Auction, Lot 80071 CHINA. Lot of (4) Dollars, 1914-21. PCGS & NGC AU Details to MS-63. L&M-63, 79; Y-329, 329.6. An interesting study group of Yuan Shih-Kai Dollars. A pair of each type listed, including an unusual double die obverse 1921 with clear doubling in the patch (epaulet) that while details graded, is still a very desirable variety. The balance of the lot...