Year/Period |
1950-1960 |
Maker |
BLEEKER |
Country |
The Netherlands |
Signature |
(1): CURTIS . SYSTEMS // BLEEKER / HOLLAND // NOI [in logo] / No 45 / 67503 |
Category |
Other optical equipment |
Subcategory |
Refractometers |
Inventory number |
SM 79 |
For information on the color and number of the rings see refractometer color codes (in Dutch).
To see the inside of this instrument we refer to SM 168.

Butter refractometer after Wolney
ZEISS
ca. 1891

Refractometer or Saccharimeter opened
BLEEKER
1950-1960

Hemoglobin meter
REICHERT
1870-1880

Magnifier
OLDELFT
ca. 1950