Watch List notes:

White, R. B., A Comprehensive Finding List of Chinese Cash 618 AD to 1912 AD, Sheldonville 1976, 48 pages, softcover. An easy finding tool: look up the top character, then find the 2nd character of the reign title in the charts for a cross-reference to Schjöth, Ding, Coole & others, ex Dan Bloxsom Collection.

Estimate: 5- 15 USD