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(81 - 100 of 137)
Plate holder for 200″ prime focus spectrograph (5 x 7 plates with guider
48″ telescope drive
200″ coude spectrograph
Inspecting mirror supports for 200″
Power house and 48″ Schmidt dome, looking east
C.S.C. welders standing on lower shutter rail in dome opening
First course of circular plates above carriage shelf
The mirror of the 200″ telescope
Arrival of prime focus cage
Dome in last stages of completion--shutters not yet installed
200″ telescope prime focus hoist carriage in place
Aluminizing tank for 200″ mirror
Byron Hill and Al Winters working on Coude mirrror gantry crane
Tube assembly--48″ Schmidt
Polar axis and housing of the 48″ Schmidt telescope
Setting columns on top of carriage shelf
Declination drive
Photometer (?), prime focus--200″
Dome carriages in transit on mountain
B-ray spectrometer slit shutter assembly