Thank you for viewing my item!    Available is a lot of 115 Envelopes with first day issue of the 8c Copernicus stamps.   Each envelope has the same stamp on it.    The two people pictured on the left side of the envelope are Cornelius Copernicus and Wincenty Witos.    The postmark on the envelopes are Washington DC Apr 23 1973.    Shipping will be $10 in the US.    Outside the US will be $44(US) for Global Shipping.