Photomicrographic camera by F. Davidson & Co., London, 29 Great Portland Street, c. 1920. With loose mirror cap. With quarterplate camaera fo paltes or cutfilm made of oak and a simple microscope. Both are mounted on a solid oak baseboard. WIth back ground glass screen. Rack and pinion focusing. The front standard is attached to the nicroscope and remains stationary. Can be used as a 'Microtelescope' giving variable magnification of 16 to 50 diametes and a range of vision from 3 feet to infinity.
