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Title: Varley's Dark-well microscope by Varley, one doublet (non-ac [Go to resource]
Description: Varley's Dark-well microscope by Varley, one doublet (non-achromatic) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Varley, Cornelius Identifier: 1921-182 Go to resource More Like this...
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