The envelope has 14 signatures of Flying Tigers AVG members. Dick Rossi, Tex Hill, Charlie Bond to name a few. This image is a card that came with the envelope as an insert.
Envelope has been in a vault, under air conditioning, and out of sunlight. I bought these from Mrs. I have a signature card by her stating so. I can send to you if you have serious interest. This item is in the category "Stamps\United States\Covers\FDCs (1951-Now)\1981-90".
The seller is "khesanh-2009" and is located in this country: US. This item can be shipped to United States, Canada.