GB Decimal | Halfpenny | A1 | | 1971 | | Plain | | Extremely Fine | 1,394,188,250 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1972 | | Plain | sets only | Proof | 150,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 1 |
GB Decimal | Halfpenny | A1 | | 1973 | | Plain | | Extremely Fine | 365,680,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1974 | | Plain | | Extremely Fine | 365,448,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1975 | | Plain | | Extremely Fine | 197,600,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1976 | | Plain | | Extremely Fine | 412,172,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1977 | | Plain | | Extremely Fine | 66,368,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1978 | | Plain | | Extremely Fine | 59,532,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1979 | | Plain | | Extremely Fine | 219,132,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1980 | | Plain | | Extremely Fine | 202,788,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A1 | | 1981 | | Plain | | Extremely Fine | 46,748,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A2 | | 1982 | | Plain | | Extremely Fine | 190,752,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 6 |
GB Decimal | Halfpenny | A2 | | 1983 | | Plain | | Extremely Fine | 7,600,000 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 2 |
GB Decimal | Halfpenny | A2 | | 1984 | | Plain | sets only | Brilliant Uncirculated | 158,820 |  Queen Elizabeth II (Arnold Machin) |  St. Edwards Crown (Christopher Ironside) | 2 |