Two Penn tennis balls (.1 - .2), all autographed, in black marker, by the same person. Materials: Rubber, Felt, Inktennis

Five Penn tennis balls (.1 - .5), all autographed, in black marker, by Martina Hingis. Materials: Rubber, Felt, Inktennis

A collection of 6 (.1 - .6) pink felt tennis balls. Materials: Rubber, Felt, Inktennis

Three generic Penn tennis balls. Materials: Rubber, Felt, Inktennis

Two red felt tennis balls. Materials: Rubber, Felt, Inktennis

Three Dunlop 'All States' Heavy Duty tennis balls with different coloured seams (bone .1; brown .2; and, black .3). Materials: Rubber, Felt, Ink, Cordtennis

Three early 20th century tennis balls (.1 - .3). Materials: Rubber, Felttennis

Three tennis balls, with inscription: SPALDING/APP. U.S.L.T.A./CHAMPIONSHIP. Materials: Rubber, Felt, Inktennis

Three Slazenger 'High Visibility' '1' tennis balls, advertising the 1999 Australian Open. Materials: Rubber, Felt, Inktennis

Three Penn 'Centre Court' tennis balls, featuring the trademark and logo of Grand Slam Sports. Materials: Rubber, Felt, Inktennis

Three Wilson 'Championship' tennis balls. Materials: Rubber, Felt, Inktennis

Two tennis balls advertising the Jaeger Tennis Heritage Collection. Materials: Rubber, Felt, Inktennis

Two Wilson 'Championship', purple felt tennis balls. Materials: Rubber, Felt, Inktennis

Two 'Royal Court' tennis balls. Materials: Rubber, Felt, Inktennis

Two deflated tennis balls. Materials: Rubber, Felttennis

Five assorted lemon and lime coloured tennis balls. Materials: Rubber, Felt, Inktennis

13 assorted tennis balls from circa 1925. Materials: Rubber, Felttennis

Ornate filigreed metal ashtray with crossed racquets and ball motif. Materials: Metaltennis

Brooch in shape of a racquet, ball and a hat decorated with blue flowers. No stamps/marks. Materials: Metal, Enameltennis

Brooch in shape of a racquet and ball. Stamped 'q' (1890) and anchor mark (Birmingham) and makers mark '...&M' on reverse. Materials: Silver/Metaltennis

Gold-plated pin in shape of crossed racquets, studded with clear stones/glass, and green stone representing ball. Materials: Metal composite, Glasstennis

Gold brooch in shape of a racquet and ball. No marks. Materials: Gold/Metaltennis

Brooch in shape of a racquet and ball. Studded with reflective stones. Materials: Metaltennis

Brooch in shape of a racquet and ball. Studded with faux diamonds (clear stones or glass). Materials: Metal, Glasstennis

Gold brooch in shape of a racquet and ball housed in jewellers box. Engraved on obverse: '23 MAY 1910'. Engraved in ornate script on reverse: 'MLM/HARROGATE'. Box is blue velvet, with text printed on lining of underside lid: 'MAKERS TO THE ADMIRALTY/WATCH/MANUFACTURERES/& JEWELLERS/S.GREENOUGH & SONS/45/NEWPORT ST/BOLTON'. Materials: Gold/Metal, Velvet, Wood, Metaltennis

Set of six buttons, each with crossed racquets, ball and net motif. Materials: Metaltennis

Set of 4 wood buttons each with a crossed racquet and ball motif. Materials: Wood, Inktennis

Gold circular brooch; obverse featuring two crossed racquets and ball; reverse is glass backed containing a lock of hair. Materials: Gold/Metaltennis

Silver cuff-style bracelet with racquet and ball motif. Stamped on reverse:SILVER. Materials: Silver/Metaltennis

Brooch in shape of a racquet and ball. Stamped 'STERLING' on obverse. Materials: Silver/Metaltennis