10418895
Construction of a 41 inch equatorial refracting telescope, 1928.
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10418895
Construction of a 41 inch equatorial refracting telescope, 1928.
10418896
Construction of a 41 inch equatorial refracting telescope, 1928.
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10418896
Construction of a 41 inch equatorial refracting telescope, 1928.
10418897
Construction of a 26 inch equatorial refractor telescope, 1928.
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10418897
Construction of a 26 inch equatorial refractor telescope, 1928.
10418898
Construction of a 26 inch equatorial refractor telescope, 1928.
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10418898
Construction of a 26 inch equatorial refractor telescope, 1928.
10418899
Construction of a 26 inch equatorial refractor telescope, 1928.
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10418899
Construction of a 26 inch equatorial refractor telescope, 1928.
10418900
Construction of a 26 inch equatorial refractor telescope, 1928.
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10418900
Construction of a 26 inch equatorial refractor telescope, 1928.
10418901
Construction of a 26 inch equatorial refractor telescope, 1928.
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10418901
Construction of a 26 inch equatorial refractor telescope, 1928.
10418902
Construction of a 26 inch equatorial refractor telescope, 1928.
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10418902
Construction of a 26 inch equatorial refractor telescope, 1928.

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