| Diameter |
| 1865 – 1912: 17.98mm 1917 – 1947: 18.03mm |
| Weight |
| 1865 – 1917: 2.36g 1919 – 1947: 2.33g |
| Composition |
| 1865 – 1944: .925 silver, .075 copper 1945 – 1947: .800 silver, .200 copper |
| Diameter |
| 1865 – 1912: 17.98mm 1917 – 1947: 18.03mm |
| Weight |
| 1865 – 1917: 2.36g 1919 – 1947: 2.33g |
| Composition |
| 1865 – 1944: .925 silver, .075 copper 1945 – 1947: .800 silver, .200 copper |