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.
Folding magnifier
ONBEKEND/UNKNOWN
1920-1950
Cytometer
BLEEKER
1940-1960
Folding magnifier 8×
BUSCH
1900-1930
Spectroscope
BLEEKER
ca. 1960