Lot   Cat.#
Net Price
947    Standard #PE10
1925, tax stamp with black surcharge 50k on Postal Charity stamp of 1+1k orange and gray, tied by seven-line official cachet, used on reverse of registered philatelic exchange cover from Kharkov and Moscow to Sofia, franked by definitive stamp of 40k slate on front, postmarked on arrival, mostly VF

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