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G. & S. Merz Refracting Telescope, c. 1900...
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Large Brass Telescope by Utzschneider u. Frau...
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Kosmos 110 mm Newtonian Telescope, c. 1925...
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Brass Refracting Telescope by Cerf, c. 1880...
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4 Telescopes on Decorative Stands, 19th Centu...
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Brass Refracting Telescope by Stevens & Co, c...
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Brass Refracting Telescope on Heavy Tripod, c...
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Brass Refracting Telescope by Salmon, c. 1870...
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Englisch Mahogany Stick Barometer by Solmavic...
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Cardanian-Mounted Stick Barometer by Cail, c....
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German Cased Barograph, c. 1900...
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British Recording Barometer, c. 1920...
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Early Dutch Compound Microscope, c. 1810...
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Compound Microscope, c. 1870...
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2 Interesting Brass Compound Microscopes...
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5 Simple Microscopes...
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3 Materials Research and Testing Microscopes,...
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Microscopic Preparations and Publications...
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4 Magnifiers and Microscopes...
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2 Simple Microscopes of Varied Form...
