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#1694        CD 187       CALIFORNIA       Yellowish smoke.

  Lot # 1694
Listing Image
Pole_Top_Discoveries
Details
  • Lot # 1694
  • System ID # 459546
  • End Date
  • Start Date
Description

#1694        CD 187       CALIFORNIA       Yellowish smoke.

Known as the “Brown Pony,” this style was patented by Robert G. Brown in 1886.  Designed to be mounted on the underside of a crossarm, enabling a larger number of wires to be used on a pole without adding extra crossarms.

The Brown Pony design was produced by various glass companies... those marked "California" are scarce.

This type insulator, as well as most other "spool" types, were molded with a  thin, solid glass top, which was punched out after production, always leaving a rough perimeter where the glass was removed.  This unit has the typical coarseness at the top of the pinhole from the factory "punch out" process.

The base has a very neat, well defined whirlpool-swirl pattern, similar to some of the very early threaded insulators that have a "swirl start" to the threads. 

Surface annealing line on upper right portion.  Very near mint.