Bidspirit auction | One Man Collection of Tannu

One Man Collection of Tannu Tuva - Postal Stationery Envelopes - 1940, stationery envelope 20k blue, printed on grayish paper, size 163x128mm, interior ''Pochta'' (type c), vertical fold and facial abrasion, still fine and extremely rare, especially in unused condition, Ustinovsky #K4, Est. $5,000-$6,000