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Post your own itemIn Tools and Hardware > Insulators > Show & Tell.
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Knox pocelain pin type insulator

Tools and Hardware34 of 101insulators PREVLarge Collection; multiple colors NEXT
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Posted 7 months, 3 days ago

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hm2169
(1 item)

I have a Knox Porcelain Crop insulator. I have been unable to find information about some of the markings as shown (BTC, 7 73, 7500). If someone knows what they are and possibly there value please let me know.

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