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  • hoskins mfg company 1922 delicate heat-treating job vintage ad

Original vintage optical industry trade magazine ad for HOSKINS MANUFACTURING COMPANY of Detroit. MI.  What's The Most Delicate Heat Treating Job?  The Annealing of Optical Glass.  The Geophysical Laboratory at Washington adopted exclusively the Hoskins Chromel Thermocouple for this work.  Old 1922 optical laboratory equipment and supplies advertisement.

hoskins mfg company 1922 delicate heat-treating job vintage ad

  • Product Code: s238
  • Length: 9 inches
  • Width: 8 inches
  • Pages: 1
  • Views: 75
  • Availability: In Stock
  • $20.00
  • $15.00

    ON SALE
    25% OFF

  • You save: $5.00 (25%)

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Original vintage optical industry trade magazine ad for HOSK..

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