Boller and Chivens designed, manufactured, assembled and installed equipment that supported many telescopes.
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Click below to learn about some of these projects:

120 Inch Telescope Right Ascension and Declination Drives
4 Inch Astrograph
Cameras and Guiding Eyepieces
Cassegrain Focus Spectrograph for 61-inch U.S. Naval Observatory Telescope, 1968
Flare Spectrograph for Sacramento Peak Observatory
Large Spectrographs
Large Spectrograph for Pine Bluff Observatory
Master Equatorial Mount
Primary Worm Shaft Inspection
Site Survey Telescope
Solar Coudé Spectrograph
Solar Patrol Telescope
Solar Spectrograph for Sacramento Peak Observatory, 1965
Spectrograph for 100 Inch Telescope for Carnegie Institute, Las Campanas Observatory, Chile
Twin Astrograph
Vertical Spectrograph for Max Planck Observatory, Spain