Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Russia and Soviet Union - 1935, Moscow - San Francisco Flight, red surcharge 1r on Levanevsky stamp of 10k dark brown, small ''f'' variety, position 7 of 25-stamp setting, full original gum with a few very little wrinkles, full OG, NH, VF, pencil sign on reverse, C.v. $2,250, Est. $1,500-$2,000, Scott #C68b