Black plastic rack contraining nine slides of blue glass ('Lovibond glasses') in increasingly dark tints
- maker:
- Tintometer Limited
Black plastic rack contraining nine slides of blue glass ('Lovibond glasses') in increasingly dark tints, Tintometer Limited, Salisury, United Kingdom, 1940-1958
Details
- Category:
- Optics
- Object Number:
- 1958-79
- Materials:
- plastic (unidentified) and glass
- Measurements:
-
overall: 7 mm x 118 mm x 71.5 mm, .051kg
- type:
- neutral density filter, colorimeter and component - object
- credit:
- Tintometer Limited