Original vintage optical industry trade magazine ad for BROWN INSTRUMENT COMPANY of Philadelphia, PA. A Portable Pyrometer of Extreme Precision.Ideal for Checking Millivoltmeters and Potentiometers. Old 1922 optical industry equipment advertisement.
brown instrument company 1922 portable pyrometer precision vintage ad
- Product Code: s224
- Length: 9 inches
- Width: 6 inches
- Pages: 1
- Views: 6
- Availability: In Stock
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$20.00 $15.00
- Save : $5.00 (25%)
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