I bought a porcelain sign the other day and noticed after I brought it home it had OK underneath it. Someone took an OK Chevrolet porcelain sign and fired porcelain on top of it to make a totally different sign. You can see and feel the cursive lettering outlines of OK exactly like the OK chevy signs. I have seen porcelain signs that were painted over but nothing like this. It will not do any good to post a picture of the sign cause you can't see it. You have to be holding the sign to see it.