Humboldt State University ® Department of Chemistry

Robert A. Paselk Scientific Instrument Museum

AO-Spencer Refractometer Manual

This manual was issued by AO-Spencer in 1947. It accompanied the AO-Spencer Refractometer No. 2009. Reproduced with permission from the copyright owner, Carl Zeiss Vision, Inc.

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Click on each object for a higher resolution image.

The original brochure measures 5 x 7.5 inchs and is printed on glossy paper with a textured brown cardstock cover and bound with two staples.

Instrument Literature


HSTC (1921-34)
HSC (1935-1953)
HSC (1954-1973)

© R. Paselk
Last modified 9 July 2010