OLYMPIC PARTICIPATION MEDALS -- MUNICH 1972. A stainless steel participation medal (the only Olympic participation medal to be struck in steel), 2in. (50mm.), by Krupp Steel Works, the obverse engraved in black with abstract design and legend: "XX. Olympiade München 1972," the reverse with a design of two hands, one outstretched to receive a bay leaf from the other, surmounted by the Olympic logo, in original perspex case -- MOSCOW 1980. A bronze participation medal, 2½in. (60mm.), by Leonova, the obverse showing the Moscow Olympic logo and legend, the reverse depicting a view of the Red Square, in original red leather case -- SEOUL 1988. A bronze participation medal, 2½in. (60mm.), the obverse with Seoul motif, Olympic rings and legend: "XXIV Olympiad, Seoul 1988," the reverse showing a shrine, in original box. (3)