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Large Physical Experimental Model, c. 1910...
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Electro-Physical Experimental Set, c. 1910...
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Battery of 4 Leyden Jars, c. 1910...
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Battery of 2 Leyden Jars, c. 1915...
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2 Terrestrial Globes of 4¾ -Inch Diameter, c....
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Orrery by Feinwerktechnik Leipzig, c. 1970...
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2 Sun Dials and 1 Nocturnal...
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"Heron's Ball" or Aeolipile...
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The Star Sky at Every Hour of the Year, c. 19...
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Klodt's Astronomical Teaching Clock, c. 1900...
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Equatorial Minute Sundial, c. 1750...
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