M.A. Knapp insulator
By Rick Soller; posted May 16, 2014
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Here's a picture of the M.A. Knapp insulator I own. (front) M.A. KNAPP (back) CHICAGO, ILL. |
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Here's a picture of the M.A. Knapp insulator I own. (front) M.A. KNAPP (back) CHICAGO, ILL. |