Baden-Powell 1857 BP 1957 centenary badge Boy Scouts Girl Guides

A good original 1957 period 'Baden-Powell centenary souvenir badge'; small gilt bar inlaid with orange enamel inscribed '1857 BP 1957'; the reverse impressed with maker's details 'COLLINS LONDON'. Very good condition, complete with original pin, no damage to the enamel, gilt finish remains bright. Size approx 27 x 14mm.