1924 Gold Sovereign London
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The 1925 Gold Sovereign. London Mint. The reverse shows Pistrucci's George and the Dragon. It was the first London Sovereign minted since 1917 and the last London Sovereign of George V. However, most of the Commonwealth mints produced sovereigns for this year and several other years.
As most of the pre-war sovereigns were melted into gold bars for the war effort, if you have a 1925 sovereign it is more likely to be a restrike even though the mintages were much lower.