Green’s Dictionary of Slang

cash n.1

[cassan n.]

(UK Und.) cheese.

[UK]B.E. Dict. Canting Crew.
[UK]J. Shirley Triumph of Wit 195: Filch me some Pannum and Cash [Cut me some Bread and Cheese].
[UK]A. Smith Lives of Most Notorious Highway-men, etc. (1926) 205: [...] Flick me some panam and cash, i.e., cut me some bread and cheese.
[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.