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Description: | 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. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | telescope - Cassegrain filar micrometer telescope - reflecting | Temporal: | 1762-1774 | Source: | Science Museum | Creator: | Ramsden, Jesse | Identifier: | http://collectionsonline.nmsi.ac.uk/grab... | Go to resource |
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