No markings
Picture Courtesy McDougald's/Bill Meier
CD 175.5: USA
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Picture Courtesy McDougald's/Bill Meier |
Only pieces of this unusual style have been found. It appears to be a glass version of U-189A. This style was made to a May 18, 1915 patent by Robert A. Manwaring and James T. Hessel. These are designed to support the power line to street lights (US Patent 1,140,050). Original photograph courtesy John & Carol McDougald, digital repair by Bill Meier.
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