U-937 rare Mershon oval shaped insulator made by Imperial
By Rick Soller; posted February 5, 2017
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U-937 Mershon oval-shaped porcelain insulator. Incuse marked on both sides: MANUFACTURED BY / IMPERIAL PORCELAIN WORKS / TRENTON, N.J. $1650 postpaid. 6 base chips on the outer skirt, 3 chips on the middle skirt, black soot on the underside. |