Lot 81398 – 1933 Tannu-Tuwa, 15 k overprint on 6 k orange

1933 Tannu-Tuwa, 15 k overprint on 6 k orange (Michel 39I, overprint 5.1 mm), a well-centered and scarce stamp. The seller notes the following “The rare original surcharge made by the first numbering machine; not listed separately in Michel”.