No. 1 binocular microscope by Powell and Lealand, 170 Euston Road, London, dated 1874. Former property of the British Museum (Natural History). Museum no. GD342. On tripod stand, rotatable X-Y stage (see note).

Microscope, No. 1 binocular microscope: component

Microscope, No. 1 binocular microscope: components

Case with accessories for Powell and Lealand No.1 microscope dated 1874

Case with accessories for Powell and Lealand No.1 microscope dated 1874

Case with accessories for Powell and Lealand No.1 microscope dated 1874

Mahogany case with accessories for Powell and Lealand No.1 microscope, London, England, dated 1874, consisting of: eyepiece filar micrometer, 4 of 5 sets of pairs of eyepieces (one of 5 with part 1), 12 object lenses by Ross, Powell & Lealand, Carl Zeiss and unknown makers; focal lens as follows: 2 x 1/8-inches, 2 x 1/16-inches, 2 x 1/4-inches, 1 x 1 1/2-inches; four apochromatic, sizes as follows: 2.5, 3, 4 and 8 mm; 3 condenser lenses, a rotating aperture stop; 2 lieberkuhns and an assortment of unidentified accessories.

Case with accessories for Powell and Lealand No.1 microscope dated 1874

Case with accessories for Powell and Lealand No.1 microscope dated 1874