Canadian Porcelain 33/3

By James Mulvey; posted November 16, 2015

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I was given a number of U-669 porcelain insulators this summer. Some unmarked, some with CP and some with CP 3/33. I don't pay much if any attention to markings or embossings but happened to notice one this morning with an upside down marking shown in the insert. I have taken over 40 pics and can't get the marking to show any better than the insert shows.