Cassegrain reflecting telescope, 1762-1774

Cassegrain reflecting telescope of 6 inch aperture by Jesse Ramsden, London on an adjustable equatorial mounting with 2 spirit levels and 3 levelling screws. Accessories include, a filar micrometer, 3 small speculum mirrors, 3 eyepieces [1 by Nairne & Blunt], 2 adjustor keys and a finder telescope.

Collection

Science Museum

Inventory Number

3020704

Title

Cassegrain reflecting telescope, 1762-1774

Object Type

PhysicalObject

Measurements

- box: length 310 mm; box: width 160 mm; box: height 80 mm; length 500 mm; width 720 mm; height 300 mm