Bidspirit auction | One Man Collection of Tannu

One Man Collection of Tannu Tuva - Pictorial issue - 1928 (March 10), Camel Caravan, 14k violet and orange, horizontal pair, used on registered cover from Kyzyl to Moscow, tied by appropriate postal marking (Ustinovsky No.0.2), Moscow ''2.4.28'' arrival ds, VF and rare, Est. $300-$400 , Scott #22 x2