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Title: Refracting telescope of 2 1/4 inch aperture and 36 inch foca [Go to resource]
Description: Refracting telescope of 2 1/4 inch aperture and 36 inch focal length by Trougton, London on an adjustable equatorial mounting with spirit level and tripod stand and box. Accessories include, 2 eyepieces, key , diagonal and filar micrometer. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: equatorial instrument
filar micrometer
telescope - refractingTemporal: 1790-1826 Source: Science Museum Creator: Troughton, Edward Identifier: 1912-221 Go to resource More Like this...
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