WW1 National Reserve Class II St Pancras London home front badge

A rare original First World War period large gilt badge inlaid with blue and white enamel, '22' impressed to the right side rifle butt, the reverse impressed with maker's details 'J.R. Gaunt London' and official issue number '7784 St Pancras'. Very good condition, complete with original buttonhole fitting, no damage to the enamel, gilt finish remains bright.Height approx 38mm.