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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...
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7 Simple Microscopes...
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2 Early Brass Compound Microscopes...
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Compound Traveling Microscope, c. 1850...
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3 Small Brass Microscopes, c. 1885...
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2 Small Drum Microscopes...
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Demonstration Microscope and Hand-Held Spectr...
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2 Large Laboratory Microscopes...
