Sammy Davis Jr. Autograph

by Donna Farren
(Littlerock Ca)

I have a receipt from Bill Robertson & Sons, Inc in Hollywood, California for the purchase of a 1969 Honda CT90, which Sammy Davis Jr. purchased dated 09/16/1969 on which his address is hand written with his signature on the bottom. I would like to know what this document might be worth and who might be interested in the purchase of it.