Stamped “EPWM 3115”. EPWM signifies silver plate. Makers mark is “FSCo” with an eagle head which is Forbes Silver Company in Meridien Connecticut. They were organized in 1894 as a department of Meriden Britannia Co. and one of the original companies which formed International Silver Company. Estimated date of production is 1932. Another variant exists with Mickey playing a saxophone. Rare item in this condition.

Vintage Silver Plate Mickey Mouse Playing Diddley Bow Banjo Cup