F. Davidson & Co. London W. Patent No. 13251-12. Interesting combination of a telescope with microscope, leather-covered tube, three original Davidson eye pieces No. 2, No. 5 and No. 6. With a brass support to screw into a tree/piece of wood whilst in the field and with a brass tripod. Unscrewing the lower part of the telescope, you can use it as a MICROSCOPE. Travelling leather case (35,5 x 9,5 x 5 cm) Leather case with normal signs of use. The Instrument is in excellent condition.