Watch List notes:

Bank of China, 1917 "Kalgan" Branch Issue "Inverted Back Error" Rarity. Kalgan (Cyrillic text), 50 cents, P-45c S/M#C294-74c, Issued banknote, Uncataloged with inverted reverse. Blue face with red text, bridge with building, back orange, toning on the lower right and left borders otherwise Uncirculated. BEPP. Rarely seen branch issue and first time seen by cataloger. Another extremely rare note and possibly the one of the few errors known for this issue. The note catalogs $5500 in XF in the SCWPM and is not cataloged as an error inverted back note. This may be the only example offered in the foreseeable future and is sure to attract spirited bidding.

Estimate: 31000 - 62000