SCRIP,
a Shred or Scrap of Paper. As, The Cully did freely blot the Scrip, and tipt me 40 Hogs; One enter'd into Bond with me for 40 Shillings.
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Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
Scrip in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).