Green’s Dictionary of Slang

false hair [SE tower, a very high head-dress worn by women late 17C–early 18C].

c.1698		B.E. Dict. Canting Crew n.p.: Tower a Woman’s false Hair on their Fore-heads.
1710		Congreve Ovid’s Art of Love iii n.p.: And Art gives Colour which with Nature vyes: The well-wove tours they wear their own are thought [F&H].
1874		York Herald 16 Sept. 3/3: A bonnet which [...] is placed on the top of a tower of false hair, cut from the heads of dead women, and is trimmed [...] with lace and ribbon.
1886		Aberdeen Jrnl 20 Jan. 4/4: The monstrous crinoline [...] the enormous tower of false hair.