USA 1967 Saluting United States Space Achievements

Stamp block and first day covers signed by the stamp designer, Paul Calle.

Stamp block signed by the stamp designer, Paul Calle.
Maximum card with "Space Twin" stamps and signed by Edward White, the first American to conduct a spacewalk during the Gemini 4 mission on 3 June 1965. - Ira & Larry Goldberg Coins & Collectibles
First day cover with a hand-drawn sketch by the stamp designer, Paul Calle.
First day cover signed by the stamp designer, Paul Calle.