subs. (old).—See quots.

1

  1725.  A New Canting Dictionary, s.v. Half an OUNCE, Half-a-crown.

2

  1785.  GROSE, A Classical Dictionary of the Vulgar Tongue, s.v. Half an OUNCE, half a crown, silver being formerly estimated at a crown or five shillings an ounce.

3