Watch List notes:

MANCHUKUO: K'ang Te, 1934-1945, chiao (10 fen), year 6 (1939), Y-8, JSDA-20-1, Japanese Puppet State, NGC graded Proof 63, RRRR. This is the only example of a proof striking from Manchukuo we are aware of. It is unpriced in the Standard Catalog of World Coins.

Estimate: 4,500-5,500 USD