coins from 1939
  Years
Minted
composition Weight Size
$1

1921 -28 & 1934-35

90% Ag - 10% Cu 26.7 gr 38.5 mm
50¢ 1916 - 1947 90% Ag - 10% Cu 12.5 gr 30.0 mm
25¢ 1932 - Date 90% Ag - 10% Cu 6.30 gr 24.3 mm
10¢ 1916 - 1945 90% Ag - 10% Cu 2.50 gr 17.9 mm
1939 - Date 75% Cu - 25% Ni 5.00 gr 21.2 mm
1909 - 1958 95% Cu - 5% Sn 3.11 gr 19.0 mm

Ag = silver  Cu=copper  Ni= Nickel  Sn=Tin