What is "dolly shop"

Dolly \Dol"ly\, n. A child's mane for a doll.

Dolly shop, a shop where rags, old junk, etc., are bought and sold; usually, in fact, an unlicensed pawnbroker's shop, formerly distinguished by the sign of a black doll.

n. (context UK obsolete English) A shop where rags, old junk, etc., are bought and sold; an unlicensed pawnbroker's shop, formerly distinguished by the sign of a black doll.