All items are covers unless otherwise noted. Any cover larger than a number 6 size will be noted.
All covers are unaddressed unless otherwise noted.
All covers are cacheted and a brief description is given of the event being commemorated, unless otherwise noted. If covers are autographed they are genuine. This is the date the Apollo 13 explosion occured. All 4 covers have a Houston TX machine cancel and 6 cent Flag stamps. Each individual cover has a small black rubber stamp word cachet indicating launch, or explosion, or loop around Moon or splashdown.