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Description: | 'day and night' refracting telescope, micrometer adapted for use with Rand's micrometer, by Jesse Ramsden, London, England, c. 1800. Brass tube and table tripod, 1 3/4-inch object glass, one eyepiece with sun filter and micrometer eyepiece, fitted in mahogany box, with key, diameter for main tube 1 7/8-inch length 1-foot 5-inch, screw adjustable for altitude of focussing. No lens cap | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | telescope - nautical telescope - refracting | Temporal: | 1795-1800 | Source: | Science Museum | Creator: | Ramsden, J. (Jesse), 1735-1800 | Identifier: | 1911-252 | Go to resource |
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