Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was developed in 1947 and was used for many important scientific discoveries of the 20th century, like the 1957 CalTech experiment that proved James Watson and Francis Crick’s theory on DNA replication. Centrifuges continue to be produced under the Beckman name as of 2016.
The mounted photograph of a woman using a centrifuge was taken in Wisconsin in 1963; other locations are unknown. The photographs attributed to Don Shapero appear to have been taken in the early 1950s.
Shapero, Don, Russell Illig, and Wallin Photo. “Beckman Spinco Division Model E Centrifuge,” 1950–1963. Beckman Historical Collection, Box 59, Folder 140. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/6395w761p.