The History Of Science And Invention: Mint Stamp Collection

Just sent this too the wrong thread, so now, I'm kind-of winded. Oh yeh, does anyone here use stamp exchange? I was just there, and the last post, was around August 2019. Not a lot of traffic. Anyway, getting back too my query. I bought a box of postcard sized (similar too a first-day-issue) set that had a total issue of 15,000 worldwide. It is the first philatelic collection authorized by The Deutsche Museum of West Germany, for the Franklin Mint, pet the letter of authenticity (signed;Franklin J Fitzpatrick). I can't find any information on this, other than the sale of a single card from the set (good for me, and my alleged 'full' set) $5.00-$20.00. The box has over 100 cards with a mint stamp in plastic/glassine and a desciption in in English and German on both sides. (1983). Excellant condition So the question is; how many 'original' cards were/are there? Thanx for your help. Possible evaluation.