Im trying to locate the manufacturer of my castiron porcelain sink. When they casted the sink, the name stamp did not cast clearly. I can only make out the S which could be the first or last letter in the word. I have a model #p3114 and USA on the sink. Anyone have any good links to research old sinks?
Also, does anyone have any advice on removing the center drain plug? How does this come out!??!