Description Imperial Service Order, I.S.O. ISO, King Edward VII issue, Silver, Gold and enamels, engraved to William H. Thomson, 12th December 1912. A rare example of the Imperial Service Order, and an early Edward VII variety, the order was instituted in 1902 at the same time as his Coronation, mounted as worn on Elkington and Co silver brooch pin. Reverse contemporarily engraved: “Walter H. Thomson. 12th December 1912”
