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Deflection galvanometer, composed of two stationary inner coils and one revolving outer coil. Possibly made in the Caltech Physics Shop, ca 1920s–1930s. Photo ID ST-PH-28

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The Archives Reading Room is open by appointment only.

Please note our current policy concerning visitors to the Caltech campus:

• Caltech requires all visitors to campus buildings to be fully vaccinated against COVID-19.  We will ask you to show us documentation of your vaccination and booster before admitting you to the building.
  
  
• All staff and visitors are required to wear snug-fitting N95, KN95, or KF94 masks in the Archives and other Caltech Library spaces. If you do not have such a mask, we can provide one.

For research assistance please contact archives[at]caltech.edu

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To submit a request for an appointment or for copies of materials, please register for an Archives account. You may submit a request as soon as you have created your account.

For general inquiries, please contact us in the following manner:

The Caltech Archives Staff

Hours

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The Archives Reading Room is open by appointment only.

For research assistance please contact archives[at]caltech.edu
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Archives Reading Room Hours:
Monday through Friday
8:30 a.m. to 11:45 a.m. and 1 p.m. to 4 p.m.
(early closing on Thursday mornings at 11:00)

We are closed on weekends and major U.S. holidays.

Upcoming holidays:

• Monday, February 15^th 2022 (President's Day)
• Monday, May 31^st 2022 (Memorial Day)
• Monday, July 5th 2022 (Independence Day)