BRITISH INDIA: George V, 1910-1936, AV sovereign, 1918-I, KM-A525, NGC graded MS64. The fifth branch of the Royal Mint was established in a section of the Bombay Mint on December 21, 1917. This was a war-time measure, its purpose being to strike into sovereigns the gold blanks supplied by the Bombay (Mumbai) and other Indian mints. The Bombay sovereigns bear the mint mark 'I' and were struck from August 15, 1918, to April 22, 1919. The branch mint was closed in May 1919.
Estimate: $475-550