Jewellery, Watches and Objects of Vertu to include the personal archive of Louis Osman, goldsmith and architect

A Jaeger alarm clock in a silver horseshoe mount, by Asprey, 1950s, the signed circular cream dial with applied gilt Arabic numerals and baton hour markers, luminous dagger hands and central rotating dial to set alarm, manual wind movement, in a silver easel back mount modelled as a horseshoe with gilt nails, hallmarked for London, 1956, and bearing Asprey & Co Ltd maker’s mark, dial diameter 43mm. £500-700