INTERNATIONAL COOPERATION AT ORBITAL STATIONS

Classification

Territory

Russia from 1991 USA USSR (1923-91)

Subject

Commemorative postmarks Other special products, issues, printing variants etc. Space flight (incl. astrophilately)

Time period

1960s to 1980s (1960–90) Late 20th century Early 21st century

Exhibition class

Standard-size exhibits (approx. 80 or 128 sheets)