Polaroid Projector Polariscope No. 438
1940
- Title
- Polaroid Projector Polariscope No. 438
- Collection
- Caltech Images Collection
- Series
- Scientific Instrument Photographs
- Identifier
- ST-GH-005
- Dates
- 1940
- Extents
- 1 photographs
- Abstract
- Used for analyzing polarity of objects.