Green’s Dictionary of Slang

a price, esp. in gambling.

1935		A.J. Pollock Und. Speaks n.p.: Nits and lices, morning price of horse races in pool rooms.
1944		Maurer & Baker ‘“Aus.” Rhyming Argot’ in AS XIX:3.
1960		J. Franklyn Dict. of Rhy. Sl.
1972		Dodson & Saczek Dict. of Cockney Rhy. Sl.
1992		R. Puxley Cockney Rabbit.