The Collaborative International Dictionary of English v.0.48:

Dolly \Dol"ly\, n.
   A child's mane for a doll.
   [1913 Webster]

   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.
      [England]
      [1913 Webster]