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