An excellent-mint condition (See pictures) March 31, 1983 22 KT Gold Replica Stamp First Day Cover entitled Ballooning - Explorer II - 1935.  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