29 mm diameter,
11.66 grams (180 grains), reeded (milled) edge
Date Mintage Composition
1927 8,000,000* (most common date) 72% silver and 28% copper
1931 250,000* (key date of series)
1933 500,000
1934 200,000
1935 2,850,000
1939 1,500,000*
1940 1,000,000
1942 2,500,000
* Proof issues reportedly struck. Mintage unknown