A Large & Very Early Achromatic Microscope Attributed to Tully

English, c.1825, unsinged but attributed to Tully, London, the microscope stands in a large folding tripod base supported in the center on an architectural type column terminating in a compass type joint, with a square sectioned column with rack work along the front edge, with large mirror, substage condenser, Turrel type stage with X-Y control, limb at the top with large bodytube with single drawer tube, eyepiece, with stabilising telescopic rods to the rear, with a single early form of achromatic objective, and a single simple objective,

The Attribution: this microscope has very similar aspects to the microscope built by Tully from drawings supplied by Mr. J. J. Lister. similarities between the 2 instruments are:

1 - the same method of connecting the struts to the rear of the foot,
2 - The method of mounting the focus and control knobs with a central circular screw,
3 - The same design to the top and bottom of the support pillar,
4 - The same mounting method at the back of the bodytube to the struts,
5 - The substage on this microscope in incomplete but has a pair of condenser lenses in combination as did Listers.

Height when vertical 56cm (22"), when inclined 53cm (21")