Tungsten Spark Plug With Section Removed, Saleman's Issue 1917 With Original Tin Can
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I have an old tungsten spark plug from 1917. It is the salesman's issue as it has a section that is cut out in order to see the interior. It is in fantastic condition and has the original blue tin box in which it came in which is also in great condition.
Anyone know about how much it might be worth.
Fair
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