Bidspirit auction | Soviet Union - Large Die

Soviet Union - Large Die Proofs - AIR POST: 1977, History of Aviation, 4k-20k, complete set of six die proofs in gray black, artist E. Aniskin, engravers M. Silyanova and V. Smirnov, each one with printer's angles, approximate size 120x100mm, full OG with hinge traces, VF and extremely rare, especially in complete set, Est. $2,000-$2,400, Sc. #C109-14