1930s Vim-Sheftel Micro-Colorimeter MacGregor Instrument Co.

Made in NEEDHAM, MASS., U.S.A.

This Vim-Sheftel colorimeter is based on the form patented in 1933 by Abraham George Sheftel (1899-1951), a New York physician. It was made by The MacGregor Instrument Co., a firm in Needham, Mass. that was established by John MacGregor (1877-1957), an immigrant from Scotland. According to advertisements, it allowed physicians to do blood sugar tests quickly and easily in their office or at a patient’s bedside.
Ref: Abraham G. Sheftel, “Colorimeter,” U.S. Patent 1,916,589 (July 4, 1933).
This was pulled from the site below
https://americanhistory.si.edu/collections/search/object/nmah_735244

Used with age appropriate wear and tear

8" x 5" x 3.75"

Home Decor, Decor

18%

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