noll, n. — Green’s Dictionary of Slang

noll n.

[OE noll, the crown of the head]

(UK Und.) a wig.

1753		J. Poulter Discoveries (1774) 43: Calp, Noll, and Smish; Hat, Wig, and Shirt.
1786		Whole Art of Thieving [as cit. 1753].
a.1790		H.T. Potter New Dict. Cant (1795) n.p.: noll a wig.
1809		G. Andrewes Dict. Sl. and Cant.
1821		Flash Dict.
1835		G. Kent Modern Flash Dict.
1848		Flash Dict. in Sinks of London Laid Open.