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.

Polarimeter after Laurent
WINKEL
1928-1940

Achromatic stand magnifier
LEITZ
1925-1950

Telescope
ONBEKEND/UNKNOWN
1900-1930

Porro prism binocular 7×50
BLEEKER
ca. 1953