IMPORTANT: You can order any quantity envelopes from this subcategory and shipping price will be the same as per 1 envelope (set) !!!! In this subcategory we have first day cover of Soviet Political Events . We have sets and single envelopes. All first day envelopes has original envelope with matching stamp and first day seal (see details). They are limited addition and stamped with the First Day seal in USSR at Moscow Crntral Post Office. Also we have picture of the back of envelopes with soviet factory prints. Sets are coming with enclosed original Soyuz Pechat receipt.