Rare Stamps and Postal History of the World

1922 registered cover from Kharkov to Hong Kong, franked with 35x1r imperf. (350,000r in 1922 currency), returned to sender from Moscow, with handstamp "back to sender in Kharkov, no mail deliveries to the destination indicated", stamps folded at sides and bottom, fine and impressive cover to uncommon destination, to which service was not yet established
Estimate: $500