Soyuz 29+31 commemorative cover hand signed by the crews of Soyuz 29 (Ivanchenkov+Kovalyonok) and Soyus 31 (Sigmund Jaehn and Valery Bykovsky) – first German spaceflight

There are a few holy grails of space-flown artifacts which never seem to be available: John Glenn Mercury MA-6 and Yuri Gagarin - Vostok 1

hand-signed by the complete three-person crew:

hands-on preparation behind each Apollo mission

16''x12'' glossy photo hand-signed and annotated by Charlie Duke

Space Shuttle Orbiter 101 – NASA testpilots John Glenn Soyuz 29+31 commemorative cover handSpace Shuttle orbiter 101 Enterprise handsigned EAFB cover from 1977 by NASA testpilots Fulton, McMurtry, Guidry and Horton.