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Thomas |
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Thomas began insulator pruduction in 1884, and continued production until H.K. Porter Co. bought them in 1957. |
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Three U 239's |
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Three U 294A's |
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I have two of these error embossed Thomas'. Embossed both front and back, with one marking upsidedown. |
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Odd marking on this dark brown Thomas. The letter "O" below the name THOMAS, it doesn't match the font/size of the "O" in THOMAS. |
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Another Thomas with letter marking, this one appears to be a "G" (the line above the letter is simply the edge of the stamp pressed too hard or at an un-even angle) |
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