(In case you're wondering, the mark under the bar is a carbon spot.)
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The 1911 halfpenny was struck at the Royal Mint in London but in 1912 the task of minting Australian halfpennies was sub-contracted to the private mint facility of Heaton & Son in Birmingham, just as it was for the pennies of that year. In contrast to the pennies, the same reverse die was used for both years.
Mintage Designation
H11L.1A H12H.1A Mint
London Heaton & Son Mint mark
None H below lower scroll Mintge
2,832,000 2,400,000
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H11L.1A (In case you're wondering, the mark under the bar is a carbon spot.) |
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H12H.1A |
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Part of the 1912 halpenny shown above, enlarged to show the mint mark. |