Lets "spark" some conversation...Solved spark plug pre-1930

[Bunker]

Let's "spark" some conversation...Solved spark plug pre-1930

Found this spark plug today. Googled it but couldn't find one like it. Any help with the age would be appreciated!
Thanks and HH,
Bunker

 

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[up north]

Re: Let's "spark" some conversation...Solved spark plug pre-1930

Dr. Joe, I think what you found is called an oopart. Google Coso Artifact and you will see what I mean. Hmmm.

 

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