10" Ohio Brass Suspension Insulators

By Jeffrey Kraemer; posted May 24, 2020

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One of the worlds most popular suspension insulator from 1917 to the 1930s. 10,000s of thousands of these insulators sit discarded across the entire continent and abroad. These particular strings date to 1918 and are very early examples. The age of the "flange cap" OB types can be difficult to identify with a wide production time range and minor revisions to the design.

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