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Home » Other Insulators and Go-Withs » Threadless Insulators

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Item ID: 5987-01
Glass Insulator: CD 731 - Threadless
Glass Insulator: CD 731 - Threadless


Color: Light Blue
[010] [No embossing] SB

Threadless insulators are the earliest type. Even the most common threadless pintype insulators are rare. The patent for threaded insulators was issued in 1860, prior to the Civil War. This does have a bit of weathering, but fared remarkably well for such an early insulator. Base chipping, surface fleabites and small pings and faint wire rubs are the only issues. It is a lovely shade of light blue.
 

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Price: $174.50
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PRICE GUIDE

Insulator Price Guide - A History and Guide to North American Glass Pintype Insulators, by John and Carol McDougald

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The definitive reference for North American glass threaded pin type insulators.

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