1950s-70s USA and Russia philatelic covers that are related to the early satellites development, manned and unmanned spaceflights to the moon.
1966-03-16 USA Gemini 8
1966 Neil Armstrong signed USS Boxer recovery ship cover. Bold signature in black ink on Mar 17 1966 USS Boxer cover with Gemini 8 cachet. US Navy Recovery Force cachet on reverse. - RegencyStamps 1966 Dave Scott signed USS Leonard Mason recovery ship cover. - Novaspace signing session in 2010.