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Bausch & Lomb Colorimeter & Seemann Instrument
Lot 108

Bausch & Lomb Colorimeter & Seemann Instrument

Estimate: $200 - $400
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Starting Bid
$100
[0 Bids]Bidding History
Bid increments chart

Bid Increments

Price Bid Increment
$0 $10
$200 $25
$500 $50
$1,000 $100
$2,000 $200
$5,000 $500
$10,000 $1,000
$20,000 $2,000
$50,000 $5,000
$100,000 $10,000
$200,000 $50,000
$1,000,000 $100,000
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.

Condition

Request Condition Report
Untested. Wear commensurate with age and use. Lenses and mirror is dirty. A backing to the mirror has separated.

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