The Collaborative International Dictionary
corking pin
corking pin \cork"ing pin`\ (k[^o]rk"[i^]ng p[i^]n`).
A pin of a large size, formerly used attaching a woman's
headdress to a cork mold. [Obs.]
--Swift.
Wiktionary
corking pin
n. (context obsolete English) A large pin used to attach a woman's headdress to a cork mould.