Szechuan-Shensi Soviet 500 Cash

Here's a nice example of Y# 512.2, a larger type with the obverse hammer handle extending between the right central star leg. These are known to be larger and this one is ~ 35.2 mm.
Please compare this with the other SSS 500 Cash examples. I have 14 examples of these and probably 10 of them are Y512.1 - and other examples that conform to Y 512 & Y512.2 with another ambiguously leaning to Y 512. So with that anecdotal evidence one might draw some idea of relative scarcity that does not conform to KM (Krause-Mishler SCWC).

Here are a number of RARE articles on Communist Chinese Soviet coins & notes from the Moneta Library:
VIEW & DOWNLOAD:
Soviet Chinese Copper Coins ("Little Brown Book") - Hua Guangpu
Soviet Chinese Coppers - Hua Guangpu
Soviet Coins Intriguing - Hogan
Chinese Soviet Coins Intriguing - Hogan
Chinese Soviet Coins and Notes - Raeburn (1937!)
Chinese Soviet Coins and Notes - Raeburn
Chinese Communist Armies Silver Coins - Kann
Chinese Communist Armies - Kann

The premier articles on Early Chinese Soviet issues are the invaluable documents below. It covers the history, coins and notes from 1927-1935 and includes photos and a map: (with color photos; in 3 parts);
The Money of Communist China - Sandrock (3 part series)
Part I: The Money of Communist China 1927-1949 - Part I
Part II: The Money of Communist China 1927-1949 - Part II
Part III: The Money of Communist China 1927-1949 - Part III

The Comprehensive Catalog of Chinese Copper Coins ("SOVIET" extract; color illus.) - Duan
Chinese Soviet Copper Coins - Duan