'Free coinage' definitions:

Definition of 'Free coinage'

From: GCIDE

Free coinage \Free coinage\ In the fullest sense, the conversion of bullion (of any specified metal) into legal-tender coins for any person who chooses to bring it to the mint; in a modified sense, such coinage when done at a fixed charge proportionate to the cost of the operation. [Webster 1913 Suppl.]