Detailed mock-up information; Photographic filter.
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| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
[s.n.],
1945.
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| Subjects: | |
| Online Access: | Electronic resource (PDF) |
| Item Description: | Demonstrate the use of photographic filters for additive or subtractive mixing of colored light. Includes photo and construction diagram. |
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| Physical Description: | 1 online resource (9 pages .), digital, PDF file |