Portugal - " BARCELONA 1992 OLYMPIC GAMES." 

Limited Edition ~ Philatelic-Numismatic Cover !

Reverse of Cover gives details, a few words:

" In order to commemorate the 25th Olympiad of Modern Age to be held in Barcelona, Spain, the Portuguese Post Office jointly with Imprensa Nacional - Casa da Moeda (the Mint House) is issuing a most valuable philatelic piece of art: a FDC Coin ... " 

FDI: 29. 7. 92, CTT LISBON.   

(UPAR11)