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Photographs

RBD, 2600 and RB Duodials

  • 1965-Jul

Rights

Unknown Rightsholder

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Based on the orientation of the inscription, the RBD is the dark dial, the 2600 the small dial, and the RB the large, light dial.

Photographer
Format
Genre
Extent
  • 4 in. W x 5 in. L
Inscription
  • (verso) "Jul 1965"
  • (verso) "Duodials. L to R - RBD - 2600 - RB."
  • (bottom front) "15TAD708-5. RBD, 2600 and RB Duodials."
Subject
Rights In Copyright - Rights-holder(s) Unlocatable or Unidentifiable
Credit line
  • Courtesy of Science History Institute

Institutional location

Department
Collection
Series arrangement
  • Series X. Photographic Materials
  • Sub-series 3. Photo Albums
Physical container
  • Box 85

View collection guide View in library catalog

Related Items

Cite as

Dietrich, T. A. “RBD, 2600 and RB Duodials,” July 1965. Beckman Historical Collection, Box 85. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/t148fh46c.

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The Science History Institute recognizes there are materials in our collections that may be offensive or harmful, containing racist, sexist, Eurocentric, ableist, or homophobic language or depictions. The history of science is not exempt from beliefs or practices harmful to traditionally marginalized groups. The Institute is engaged in ongoing efforts to responsibly present and address the evidence of oppression and injustice inextricable from the history of science. If you would like to learn more about our ongoing efforts or if you encounter harmful, inaccurate, or insufficient descriptions, please contact us at digital@sciencehistory.org.