Thee small silver brooches with designs incorporating tennis racquets, one with open strings crossed racquets and a horseshoe, one with a pair of racq

Thee small silver brooches with designs incorporating tennis racquets, one with open strings crossed racquets and a horseshoe, one with a pair of racquets and hallmarked Birmingham 1884, the other with a single racquet hallmarked Birmingham 1929 and bearing the initials MGC