The sovereign now only Bullion was not minted in London Mint after 1925, but continude to be minted in few Branches of Royal Mint. With a smaller head of King George V, only 3 of 7 Mints continued from 1929 till the great depresion ceased minting in 1932.
Note that King George~V, St George Sovereigns were minted with Mint mark on the representation of ground on reverse.
|Royal Mint||Start||End||Mint Mark|
World War I and the depression in the west increased the value of the Indian Rupee till it was fixed in 1927 at 1s 4d. The Pound Sterling was then worth Rs 13.33.
The only George VI gold sovereigns were 1937 Proof Specimen struck to commemorate the corronation with a mintage of only 5,500.
Ref: The Gold Sovereign. by M. A. Marsh.
1999, Cambridge U.K., 2nd ed. 118pp. Illustr. colour
The Sovereign was scanned at 600 dpi and displayed at 300 dpi It was purchased 2015 August as Bullion from a collector who had it as an investment.