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Old v new doorbells
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Phases of the moon
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Zodiac signs in the plasterwork
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Zodiac signs in the plasterwork
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Zodiac signs in the plasterwork
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Zodiac signs in the plasterwork
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Amalia taking it all in
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A 20-second exposure of the Moon on glass plate
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Glass plate of a total solar eclipse, 5/24/1900
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Several glass plates of the sun
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Various glass plates from the collection
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Scientific American from 1910-1927
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Carvings at the entry way
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Part of the landscaping plan for the observatory grounds
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One of the many libraries
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A well-wrapped telescope
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Spiral staircase to the telescope
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Film box
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Showing Amalia the control panel
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Amalia lifting the platform
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A 24-hour clock
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Makers plaque
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Degrees
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The doors to the dome
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Counter weights
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Albert Einstein visited the Observatory!
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Jupiter
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Monroe "MunroMatic" Mechanical Calculator
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Monroe "MunroMatic" Mechanical Calculator
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SCM Marchant Multiplying Machine
