

| Name | Mark |
|---|---|
| Royal Mint (Tower Hill) | — |
| J.R. Gaunt and Son Ltd. | G |
| Heaton and Sons / The Mint Birmingham | H |
| Kings Norton Metal Company | KN |
| Year | Mint Mark | Mintage | Quality | Collection |
|---|---|---|---|---|
| 1920 | G | 16,000 | ||
| 1920 | KN | 38,800,000 | ||
| 1920 | KN | 1 | BU | |
| 1920 | KN | — | Proof | |
| 1922 | KN | 32,324,000 | ||
| 1923 | H | 24,384,000 | ||
| 1923 | KN | 5,000,000 | ||
| 1924 | — | 17,000,000 | ||
| 1924 | H | 9,567,000 | ||
| 1924 | KN | 7,000,000 | ||
| 1925 | — | 19,800,000 | ||
| 1926 | — | 19,952,000 | ||
| 1927 | — | 22,248,000 | ||
| 1927 | — | — | Proof | |
| 1928 | — | 10,000,000 | ||
| 1928 | — | — | Proof | |
| 1936 | KN | 14,962,000 | ||
| 1936 | KN | — | Proof | |
| 1936 | H | 10,920,000 | ||
| 1936 | — | 70,200,000 | ||
| 1936 | — | — | Proof |