Huge Star Trek 'poster' (Oakridge RG21)

This originally came from a petrol station forecourt, well over 30 years ago..! It's double-sided and about the size and format of a double duvet cover: sealed on three sides, with an opening along the bottom for slipping over a display stand in a forecourt. I can't believe that it is still knocking around and in such good condition. Seems too good to simply bin; someone out there must want it.