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Image Archive

Owning Institution: California Institute of Technology

About this Collection

The online Image Archive, formerly known as PhotoNet, consists of more than 10,000 images, and it continues to grow. Original historic and contemporary photographs from Institute life are found here, as are documentary photos of artifacts, fine art, and rare books in our collections. Caltech history photos include most faculty and many staff members, trustees, notable visitors and other affiliated persons, along with buildings, laboratories, events, and student activities. View this collection on the contributor's website.
View collection guide.

View our statement on digital primary resources and historical description.

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10,095 items found in this collection

of 421
1 MV double-porcelain accelerator tube in the high volts lab
1 MV double-porcelain accelerator tube in the high volts lab
1 MV double-porcelain accelerator tube in the high volts lab
100" and 60" domes at Mt. Wilson
100" dome at Mt. Wilson
100" dome with group of unidentified men
100” Hooker reflecting telescope in the large dome at Mt. Wilson Observatory
100" Hooker telescope at Mt. Wilson
100" Hooker telescope at Mt. Wilson
100" Hooker telescope dome at Mt. Wilson
100" Hooker telescope dome, shutter open -Mt.Wilson
100" telescope and yoke
100" telescope at Mt. Wilson (interior)
100" telescope mirror inside lifting band
104" grindng tool on 200" disc
10-meter millimeter-wavelength telescope
10-meter millimeter-wavelength telescope
10-meter millimeter-wavelength telescope under construction
1/10 scale model
1/10 scale model
1/10 scale model
1/10 scale model of horseshoe on upper end of yoke
1/10 scale model of lower end of yoke
1/10 scale model of lower end of yoke
of 421