1966-03-16 USA Gemini 8

Gemini 8 Swanson cover cancelled on launch day at Cape Canaveral. Signed by Neil Armstrong, Dave Scott's autograph is autopen.

Beck cover B640 cachet was meant for USS Goodrich, but this one went to USS Boxer.

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.