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Description: | Refracting telescope of 2 3/4 inch aperture and 18 inch focal length by Dollond, London, on an adjustable equatorial mount with a fitted mahogany case. Accessories include, 4 eyepieces, a wedge and an ivory annulus that fits to the objective lens for illuminating cross-hairs. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | equatorial instrument refracting telescope telescope - refracting | Temporal: | 1790-1810 | Source: | Science Museum | Creator: | Peter & John Dollond | Identifier: | http://collectionsonline.nmsi.ac.uk/grab... | Go to resource |
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