What is "minting mill"

Mint \Mint\, v. t. [imp. & p. p. Minted; p. pr. & vb. n. Minting.] [AS. mynetian.]

1. To make by stamping, as money; to coin; to make and stamp into money.

2. To invent; to forge; to fabricate; to fashion.

   Titles . . . of such natures as may be easily minted.
   --Bacon.

   Minting mill, a coining press.