WW1 National Reserve Class II London badge

A scarce original First World War period 'National Reserve Class II large gilt badge inlaid with blue and white enamel, with '1' impressed to the right side rifle butt, the reverse with maker's details 'J.R. Gaunt London' and official register number '37979 London'. Very good condition, complete with original buttonhole fitting, no damage to the enamel, gilt finish finish remains bright. Height 38mm.