This list contains all types of covers for air and space events, such as space manned flights, space recoveries from ships, satellite launches, space anniversaries, special air flights and balloon events, etc. All covers are the number 6 size unless otherwise noted.
All covers are unaddressed unless otherwise noted.
All covers are cacheted unless otherwise noted and a description is given so you know exactly what you are ordering. All autographs are genuine. Covers are not listed in any particular order. Small rubber stamp address. First U.S. Satellite to orbit the Moon.