A  near mint condition (See pictures) April 13, 1983 22 KT Gold Replica Stamp First Day Cover celebrating the 250th anniversary of the birth of scientist Joseph Priestley.. Measures 4 1/4 x 7 1/2". Produced by the Postal Commemorative Society under a licensing agreement with USPS. Check my other listings for more great items including many more of these first day covers. I combine shipping costs on multiple purchases