All covers are unaddressed unless otherwise noted.
All autographs are genuine.
MOST of these covers are one each available, and each cover is described fully so that you know what you are buying. Dr. Shoemaker later became more widely known when he and his wife discovered the comets that were to impact on the surface of the planet Jupiter. There is a filler card sealed inside of this cover. There is a filler card sealed inside of this cover. Small rubber stamp address.