St Stephen's Hospital Chelsea nurses badge

A rare original vintage period 'St Stephen's Hospital Chelsea London pin badge'; a three part made unmarked silver example, the reverse inscribed to the recipient 'JOAN S. GRAHAM JUNE. 1962'. Good condition, complete with original pin fittings (actual pin a replacement), safety roller catch now absent, fixed ring to attach a safety chain, enamel with minor defects. Not perfect but very hard to find.Height approx 33mm.