| Year | Mintmark | Variety Description |
| 1913 | | Wide date figures. |
| 1922 | | Wide gap (1.5mm) between 1 and 9 in date. |
| 1924 | | Filled 4 in date. |
| 1925 | | Broken 1st leg of 2nd N in PENNY. |
| 1928 | | Broken base of 8 in date. |
| 1928 | | Broken base of O in OMN. |
| 1929 | | Broken base of O in OMN and lower dot of colon after N missing. |
| 1931 | | Mis-aligned second figure 1 in date. |
| 1931 | | Dropped second figure 1 in date (Indian die) |
| 1932 | | Figure 3 in date tilted to left. |
| 1934 | | Dot before ONE on reverse. |
| 1935 | | Dot between N and Y in PENNY on reverse. |
| 1936 | | Broken top of figure 3 in date. |
| 1939 | | Bar near rim after last A in AUSTRALIA on reverse. |
| 1941 | Y. | Dot high after PENNY on reverse. |
| 1943 | I | Large denticles around rim on reverse. |
| 1945 | Y. | Dot after KG on reverse. |
| 1952 | | Pellet on right edge of 9 in date. |
| 1952 | A. | Tall figure 2 in date. |
| 1952 | A. | Figure 2 in date tilted to right with pointed serif. |
| 1952 | A. | Figure 2 in date with square serif. |
| 1952 | A. | Figure 2 in date with wedge serif. |
| 1953 | | Long top bar of 5 and narrow right vertical of 3 in date. |
| 1955 | Y. | Two 5's in date are close together. |
| 1957 | Y. | Wide figure 7 in date. |
| 1961 | Y. | Faint first figure 1 in date. |
| 1962 | Y. | Double nose on portrait on obverse. |
| 1964 | Y. | Faint figure 4 in date. |