Green’s Dictionary of Slang

a shop tout.

c.1698		B.E. Dict. Canting Crew n.p.: Crockers Forestallers, Regraters.
1725		New Canting Dict. n.p.: crockers Forestallers, Regraters; otherwise called Kidders and Tranters.
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. [as cit. 1725].
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.