I thought that this post should come to the front again, as I have it printed and have found it very useful through the years.
Theres at least one I know of that isn't on this list and I'll post it as soon as I find my notes! LOL
It is "Vitrified Iron Products Co." from Clyde, Ohio
seems they made porcelain sign up into 1933 and then closed up the doors and were reopened in 1934 making porcelain refrigerator panels!

Last edited by K W FRITH; Mon Sep 16 2013 02:52 PM.

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