Lexington-Concord Sesquicentennial half dollar Monroe Doctrine Centennial, this coin does no credit to Beach's stature as a first-class artist. What the coin exudes in patriotism, it lacks in art." A total of 162,099 Lexington-Concord Sesquicentennial half dollars were struck at the Philadelphia Mint in April and May, 1925, with 99 pieces set aside for inspection and testing by the 1926 Assay Commission. The coins were made from blanks, or planchets, that had been intended for mintage into 1924 Stone Mountain Memorial half dollars, but had not been used. The first coin struck was presented to President Coolidge. The half dollars were sold at the
Sheet metal Sheet metal Sheet metal is metal formed by an industrial process into thin, flat pieces. Sheet metal is one of the fundamental forms used in metalworking and it can be cut and bent into a variety of shapes. Countless everyday objects are fabricated from sheet metal. Thicknesses can vary significantly; extremely thin sheets are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate steel or "structural steel." Sheet metal is available in flat pieces or coiled strips. The coils are formed by running a continuous sheet of metal through a roll slitter. In most