Vintage Kern Aarau Full-Circle Polarimeter No 92527 Switzerland w/ Wooden Case for Sale

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Vintage Kern Aarau Full-Circle Polarimeter No 92527 Switzerland w/ Wooden Case For Sale

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Vintage Kern Aarau Full-Circle Polarimeter No 92527 Switzerland w/ Wooden Case:
$299.00

This is an authentic mid-20th-century scientific laboratory instrument designed for polarimetry, the measurement of optical rotation in optically active substances. Kern full-circle polarimeters were used in chemistry, pharmacy, physics and educational laboratories. Historical references document this type of Kern instrument in laboratory instruction and scientific work.

Included with this sale

Kern Aarau Full-Circle Polarimeter
Serial No. 92527
Original fitted wooden carrying/storage case
Original leather carrying handle
Original green felt-lined supports
Original instruction plate
Optical/measuring assembly
Glass measuring/sample tube shown in the photographs
Original adjustment and mounting hardware

The instrument is clearly marked:

Kern AARAU SUISSE
No 92527
Made in Switzerland

The inside of the case also retains the original Kern instruction plate titled:

“Brief instructions for using the Kern full-circle polarimeter.”

The instructions describe adjusting illumination, setting the penumbra and vernier, inserting the tube containing the solution, and reading the circular scale in degrees.

Vintage scientific instrument

This is an excellent piece for a scientific-instrument collector, chemistry/physics memorabilia collection, educational laboratory display, vintage laboratory décor, or someone interested in the history of analytical instrumentation.

The instrument has the distinctive optical design and circular scale associated with Kern's full-circle polarimeters. Similar Kern instruments are documented in university scientific collections dating from the mid-20th century.