This antique ACMAC Billiard Challenge Cup is an original British silver-plated sporting trophy manufactured by Elkington & Co., Birmingham, one of England's most renowned makers of electroplated silverware. The cup bears the original engraved title "ACMAC Billiard Challenge Cup" and is extensively engraved with the names of tournament winners from 1901 to 1910, giving it excellent historical and collectible value. The underside is stamped Elkington & Co. with the maker's marks and pattern number 2922, confirming its authenticity as an early 20th-century production. The trophy measures 19 cm in height and 9 cm in diameter. It remains in good antique condition with age-related wear, light surface scratches and natural patina consistent with over a century of use. A scarce and attractive piece of billiards memorabilia, ideal for collectors of sporting trophies, billiards history and Elkington silver plate.