hand-signed by the complete three-person crew:

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

many of which were germinated on return

Thagard’s presence aboard Mir represented a major turning point in relations between the American and Russian space programs

Special black onboard cancellation dated February 20

Space Shuttle Orbiter 101 – NASA testpilots John Glenn hand-signed by the complete three-personSpace Shuttle orbiter 101 Enterprise handsigned EAFB cover from 1977 by NASA testpilots Fulton, McMurtry, Guidry and Horton.