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.
Achromatic stand magnifier
LEITZ
1925-1950
Grating spectroscope
BLEEKER
1950-1960
Achromatic magnifier 12×
BLEEKER
1940-1950
Refractometer or Saccharimeter opened
BLEEKER
1950-1960