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Title: 'day and night' achromatic telescope (Meniscus lens) two eye [Go to resource]
Description: 'day and night' achromatic telescope (Meniscus lens) two eyepieces (one with sunfilter), brass dust cap, mahogany tube, on table tripod stand, made by John Gilbert, Tower Hill, London", 2-inch object lens, late 18th century License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: telescope - nautical
telescope - refractingTemporal: 1776-1792 Source: Science Museum Creator: Gilbert, John Identifier: 1928-918 Go to resource More Like this...-
sectioned (longitudinally) terrestrial…
sectioned (longitudinally) terrestrial refracting telescope,…
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