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#3583-A       U-1923-A       Unmarked.       Brown porcelain.

  Lot # 3583-A
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Pole_Top_Discoveries
Details
  • Lot # 3583-A
  • System ID # 764773
  • End Date
  • Start Date
Description

#3583-A       U-1923-A       Unmarked.       Brown porcelain.

Produced in the 1920's by Medalta Potteries in Medicine Hat, Alberta, Canada.  Examples of this type insulator were used by the Canadian Pacific Railway in Western Canada.

A peculiar design that has a hole through the top of the dome, into which a metal cap fits.  A wire traverses through, then enters into the interior pinhole cavity.  The wire is still intact on both the outer portion of the insulator, and continues as a lengthy piece inside the pinhole. 

These insulators had a special metal pin which has a hollow interior, allowing the wire to traverse downward, through and below the insulator (see patent drawing, second image).  It appears as though this type insulator was used where wires were dropped down from the crossarm and into a building.  This served as a "dry spot" application.

The second image shows a copy of the Hutton patent drawing for this design, dated October 9, 1923

A scarce item, made all the more desirable with the old wire still intact.

Update, 11:40 P.M. Tuesday, January 9:  Just realized a condition report was omitted in the original description.  This beauty remains in remarkable, very, very near mint condition!!!!  A beauty!