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Title: Spy Glass (c.1730) ivory with screw focus [Go to resource]
Description: Spy Glass (c.1730) ivory with screw focus License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: telescope - terrestrial
telescope - Galilean
telescope - refractingTemporal: 1730 Source: Science Museum Identifier: 1993-1141 Go to resource More Like this...-
Screw-barrel MIcroscope by Edmund Culpeper,…Microscope, Wilson-type screw-barrel microscope, signed,…
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