Numisbriefe 1988, DDR, 10 Mark, 40 Jahre Sportbund, st in Numisbrief mit Olympiablock 1988 (alter Ausruf 40) st
Numis Letters 1988, German Demokratic Republik (East Germany), 10 Mark, 40 years sports federation, st in numis cover with Olympic block 1988 (former starting price 40) st