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Title: Early non-achromatic telescope, 3-draw, dated 1739, French, [Go to resource]
Description: Early non-achromatic telescope, 3-draw, dated 1739, French, length closed with caps 12 3/ 8" diam about 1 3/4", object glass 1" diam, focal length 28" License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: telescope - refracting Source: Science Museum Creator: Marshall,J. (maker) Identifier: 1911-260 Go to resource More Like this...-
sectioned (longitudinally) terrestrial…sectioned (longitudinally) terrestrial refracting telescope,…
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