Gray's Auctioneers
Timed Auction

From the Library to the Laboratory

Wed, Apr 8, 2026 10:00AM EDT - Wed, Apr 8, 2026 12:00PM EDT
  2026-04-08 10:00:00 2026-04-08 12:00:00 America/New_York Gray's Auctioneers LLC Gray's Auctioneers LLC : From the Library to the Laboratory https://auctions.graysauctioneers.com/auctions/grays/from-the-library-to-the-laboratory-22885
Our first timed auction of the year, features voluminous volumes and curious curiosities. Lot 126, Tielke's volume on the war between the Prussians, Austrians, and Russians, is from the Library of Thomas Howard, the British deserter and United States supporter. Lot 53 isJohn Greaves volume on the history of English weights and measures. Lot 1 is an Andreas Vogler sundial and compass. Lot 7 is a Young & Sons transit and tripod. Whether lost in a book or lost in the woods, there is something to keep the thrill of discovery alive in this short, sweet, auction.
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Lot 78

Bausch & Lomb Colorimeter & Seemann Instrument

Estimate: $400 - $600
Starting Bid
$200

Bid Increments

Price Bid Increment
$0 $10
$200 $25
$500 $50
$1,000 $100
$2,000 $200
$5,000 $500
$10,000 $1,000
Bausch & Lomb Colorimeter & Seemann Instrument, 20th Century,
Comprising scientific apparatus: A Bausch & Lomb cast iron and brass monocular microscope to view samples to determine the concentration of a colored chemical solution by comparison with the color of a standard solution. Often used for urine or blood analysis. A Seemann Laboritorium of Freiberg Germany, ca 1910s-1920s, steel laboratory apparatus, possibly used with x-ray technology. Both are labeled.

Tallest Dimensions:H: 16 1/2 x W: 6 1/4 x D: 5 1/4 in.

D. J. Warner, "The Duboscq Colorimeter," Bulletin of the Scientific Instrument Society 88 (2006): 68-70.

John T. Stock, "The Duboscq Colorimeter and its Inventor," 71 (1994): 967-970. Untested. Wear commensurate with age and use. Lenses and mirror is dirty. A backing to the mirror has separated.

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