This is a MK3A British Meteorological Office Campbell Stokes standard sunshine recorder signed by the manufacturer, Casella, London. This sturdy instrument consists of a heavy gunmetal base & framework with a brass bowl surrounding a solid glass sphere. This particular instrument has latitude adjustment scale from 0’ to 65’ North or South although on the top of the bowl it refers to 0’ – 40’. It would appear to be unused. A quantity of seasonal recording cards will be supplied.