Green’s Dictionary of Slang

peak n.1

also peake
[? link to SE picot, needlework that forms the edging of a piece of lace]

(UK Und.) lace.

[Ire]Head Eng. Rogue I 51: Peake, Any Lace.
[Ire]Head Canting Academy (2nd edn).
[UK]B.E. Dict. Canting Crew n.p.: Peak c. any kind of Lace.
[UK]New Canting Dict. [as cit. c.1698].
[UK]Defoe Street Robberies Considered 34: Peak, Lace.
[UK]Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
[UK]Scoundrel’s Dict. 15: Lace – Peake.
[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[US]Matsell Vocabulum.