Very rare and early self framed beveled edge metal sign. Instructions for operating the Socony arrow oil burner in heating plant.
This sign would have hung on the wall in the factory right near the equipment. Graphic diagrams are shown next to some of the steps. Photos show condition and dimensions. I do my best to write accurate descriptions and mention any damage or other issues, but please use the photos to judge the overall condition for yourself.If you have any questions feel free to send me a message.