clad coinage造句

• It decided on clad coinage, with copper nickel faces and a pure copper core, as the most desirable replacement material.
• The new silver quarters entered circulation on August 1, 1932; and continued to be struck in silver until the Mint transitioned to copper-nickel clad coinage in 1965.
• The Mint adjusted both sides of the coin for the initiation of clad coinage, lowering the relief ( the modified reverse design exists on some 1964-dated silver quarters ).
• The Mint modified the master hub only slightly in beginning clad coinage, but starting in 1981, made a number of minor changes which lowered the coin's relief considerably, leading to a flatter look to Roosevelt's profile.