English, c. 1870, signed in script along the rear barrel ‘J. H. Dallmeyer, London’, standing on a substantial cast iron frame with fine movement controls to front and back via lacquered brass screw wheels, height adjustment to underside, tall uprights with lamp mounts to both sides, fine screw adjustment mounted on both sides, large brass bearing blocks to the top with screw down covers, telescope with a large 6inch solid silver vernier scale with two reading magnifiers, telescope central boss with internal adjustable white reflector for night time/low light illumination, telescope with 90degree eyepiece, crosshair micrometer (cross hairs in place), push/pull focus, achromatic cell to front behind lens cap, telescope length 55cm, height 56cm, width 46cm, circle 15cm, weight 30kg.