Incident light multiplying mask
- 2005.005.4.021
- Item
- [manufactured ca. 1945]
Item consists of two exposure meter attachments, used to effectively measure bright light sources.
Architecture department
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Descrição arquivísticaWestinghouse Mazda photoflash lamp syncro-press No. 22
- 2005.005.3.53
- Item
- [manufactured ca. 1945]
Architecture department