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#1578       CD 292       "PATENTED JUNE 17 1890"         Dark green.

  Lot # 1578
Listing Image
Pole_Top_Discoveries
Details
  • Lot # 1578
  • System ID # 440872
  • End Date
  • Start Date
Description

#1578       CD 292       "PATENTED JUNE 17 1890"         Dark green.

Especially impressive, dark coloration!    These power glass insulators have been found in several colors, including an attractive variety discovered on electric distribution lines in California.

Likely produced for C.S. Knowles Company, a Boston area electrical supplies dealer.

Desirable, well pronounced folds and creases on the shiny glass surface.

Very near mint.