• brown instrument company 1922 portable pyrometer precision vintage ad

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
  • $20.00 $15.00

  • Save : $5.00 (25%)
  • ON SALE
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