| Diameter |
| 1674 – 1787: 21mm 1816 – 1887: 19.32mm 1887 – 1967: 19.50mm |
| Weight |
| 1674 – 1696: 3.10g 1711, 1787: 3.00g 1757 – 1758: 3.20g 1816 – 1837: 2.83g 1838 – 1910: 3.01g 1911 – 1967: 2.83g |
| Composition |
| 1674 – 1920: 0.925 silver 1920 – 1946: 0.500 silver 1947 – 1967: cupro-nickel |