Green’s Dictionary of Slang

calfskin fiddle n.

[its calfskin head]

a drum.

[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[US]Trumble Sl. Dict. (1890).
[Aus]Crowe Aus. Sl. Dict. 14: Calf Skin Fiddle, a drum.