USNM 60364-M (SK-120). Figure 32.
Figure 32
Early in 1822, the Secretary of War, acting on a suggestion of Callendar Irvine, ordered that all metal equipment of the infantry be of "white metal" in keeping with its pompons, tassels, and lace.[73] This specimen, struck in copper and silvered, is believed to have been issued as a result of that order.
¶ The 1821 regulations stated that cockade eagles should measure 1-1/2 inches between wing tips. In 1832 this wingspread was increased to 2-1/2 inches. Thus, specimens of a relatively uniform pattern and measuring approximately 1-1/2 inches in wingspread will be considered as of the Regular Army, 1821-1832. Similarly, those of a relatively uniform pattern and measuring approximately 2-1/2 inches in wingspread are dated 1832-1851.
COCKADE EAGLE, C. 1821
USNM 60371-M (S-K 127). Figure 33.