MINT USSR / SOVIET UNION STAMP COLLECTION. Complete 18-Page “????? ” Deluxe Stockbook (1970s-1980s Commemoratives). USSR (Soviet Union) & Early Russian Federation. Primarily 1970s – 1980s (Late Soviet Period). Mint / Unused (Includes both Mint Never Hinged & select CTOs). Deluxe 18-Page Padded “????? ” Cover Stockbook. 18 Pages (Completely filled with historical thematic issues). […]