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  • Roller-Smith Company 1943 vintage electrical ad instrument read dial

Original 1943 electrical trade vintage ad for ROLLER-SMITH COMPANY.  Main office and plant was located in Bethlehem, PA.

Manufacturers of Electrical Measuring Instruments.

Can You Read This Dial From 15 Feet?

From what distance can yo clearly see the numbers and scale divisions on a Roller-Smith switchboard instrument?  Hand drawn on lithographed metal, and with a scale length of 5.5 inches, the dials on these instruments have been accurately read by persons with normal vision, at a distance of 15 feet. The advantages of such visibility to a busy station attendant are obvious.

Unbound from a 1943 electrical engineering magazine, this unique old one-page advertisement would display beautifully matted and framed. Nice graphics. World War 2 propaganda. A fabulous addition to your retro electrical library.

Roller-Smith Company 1943 vintage electrical ad instrument read dial

  • Product Code: zl511
  • Length: 11 inches
  • Width: 8 inches
  • Pages: 1
  • Views: 19
  • Availability: In Stock
  • $30.00
  • $22.50

    ON SALE
    25% OFF

  • You save: $7.50 (25%)

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