He won the 1937 European Amateur Boxing Championships in Milan, Italy and the 1939 European Amateur Boxing Championships in Dublin, Ireland winning the final fights against Franciszek Szymura. Musina fought in several duals: ITA vs. HUN (1936), Europe vs. USA (1936, 1937, 1939), ITA vs. USA (1937), ITA vs. POL (1938, 1939), ITA vs. GER (1938, 1939, 1940), scoring +13 –1 =0.