US 1974 and 1776-1976 One Dollar, Cupronickel Clad, KM-203 and KM-206

A trio of US American Dollar coins comprising two 1974 specimens and one 1776-1976 Bicentennial issue.
Catalog: KM-203 and KM-206.
Designer: Frank Gasparro and Dennis R. Williams.
Mint: Philadelphia.
Design type: Eisenhower obverse / Eagle and Liberty Bell reverses.

Physical specifications:
Diameter: 38.1 mm
Weight: 22.68 g
Metal: Cupronickel clad copper