Watch List notes:

MONGOLIA:LOT of 4 small Mongolian "tea brick" money issues, round 28mm, rectangular 34x25mm, 33x23mm, 19x64mm with Chinese characters on face, purchased from Stack's in New York in the 1950s, a very interesting little group, lot of 4 items, RR, ex Charles Opitz Collection.

Estimate: 300-500 USD