Lot   Cat.#
647    487
1933, Leningrad Philatelic Exhibition, maximum card used for Moscow Exhibition, but with additional blue overprint "Leningrad. State Museum of Revolution" on front, franked by three values including red overprint 35k on 15kbrown black on reverse, tied by Exhibition postmark and sent by registered mail from Leningrad to Harbin, trace of hinge on front, sill VF

Stamp Auction #79, September 14, 2018. Raritan Stamp, Inc