Michael Zachary writes:

The Ten Cash Commentary: The General Issue Ten Cash Coins of the Republic of China
1st Edition
ISBN-13: 978-1508408215
ISBN-10: 1508408211

The definitive English-language guide to the general issue ten cash and one fen coins of the Republic of China issued 1912 to 1948. Covers 162 varieties, as compared to the 49 varieties in theStandard Catalog of World Coins and the 125 varieties in A.M. Tracey Woodward's guide. Do you have the five varieties of Y-301? The eight varieties of Y-302? The five varieties of Y-303? Thesixteen varieties of Y-306.2? The nine varieties of Y-307? Are you confused by the descriptions in the Standard Catalog and Woodward's guide? The detailed text and photographs in this guide,which meticulously describes all of the general issue ten cash and one fen varieties, will end your uncertainty.

To order a copy of the book itself, see:
The Ten Cash Commentary:: The General Issue Ten Cash Coins of the Republic of China 1st Edition(https://www.amazon.com/Ten-Cash-Commentary-General-Republic/dp/1508408211)