I just picked up this "Lubrication" sign and was wondering if anyone knows anything about this type of sign. It appears to be made of plaster and wood. The letters are cast and held together on two wood rails. It's about 5 1/2' long with 5" tall letters. Does anyone know what oil company might have used these (Texaco?) and what years it might have been produced/used? Thanks.
Greg

Wanted Minnesota Oil company items!