A signed Italian postal cover marking the 30th Anniversary of Cassius Clay's gold medal at the 1960 Olympic Games, signed MUHAMMAD ALI, set inside a p

A signed Italian postal cover marking the 30th Anniversary of Cassius Clay's gold medal at the 1960 Olympic Games, signed MUHAMMAD ALI, set inside a perspex plaque together with a Stacks of Plaques COA, 14 by 27.5cm., 5 1/2 by 10 3/4in.; sold together with a pair of collector's cards signed by Ali and Angelo Dundee, set in a perspex plaque, with a separate COA 11.5 by 16.5cm., 4 1/2 by 6 1/2in. (3)