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 Soviet USSR first day cover not covered in other cubcategories. 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 issued in USSR for Moscow Olympic Games. Also we have picture of the back of envelopes with soviet factory prints.