Photograph of a timber frame thatched barn demolished in 1924 in the village of Upton near Slough, Berkshire. Known as Telescope Barn the building is thought to have been used for the assembly of William Herschel's Great Forty Foot Telescope in 1789. Photograph of a timber frame thatched barn demolished in 1924 in the village of Upton near Slough 1920-1924