Puzzling electrical find




Came across these today. 1912 home. Knob and tube wiring hooked onto them (still energized).
No clue what these are. Any guesses?

image

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They just look like early dry cell batteries. Some were used for telephones (made by Everready) so your wiring may be a telephone line. Just a thought.

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Mr. Jonas, Was just getting ready to post the same thing

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Thanks. Appreciate the history lesson!