Royal Horse Artillery Old Comrades Association OCA pin badge

A scarce original first half of the 20th century period 'Royal Horse Artillery Old Comrades Association pin badge' originally silver plated, now worn back to brass depicting a King's crowned blue enamel title strap, embossed heavy artillery gun to centre, red enamel title 'Royal Horse Artillery' scroll below. Fair condition, original pin fittings, some enamel loss to title scroll, price reflects. Height approx 32mm.