Etcher and engraver. Born at Frome, Somerset, he studied art in Bristol before attending the Royal College of Art under Frank Short and W R Lethaby. Elected RA in 1926. Osborne was an influential teacher who was head of the engraving school at the Royal College of Art for many years. Exhibited widely, including RA, Fine Art Society, Leicester Galleries, RE, RSA and Royal Glasgow Institute of the Fine Arts. Lived in London..