Metal art nouveau frame finish and maker?
I just found this old art nouveau frame at an antiques center, it had an old beveled piece of mirror glass that I took out for now. I am assuming it's cast iron(?) as a magnet sticks to it. It had a gold finish on it but it was so tarnished with green something that was growing on it. I cleaned most of the gunk and green off but in the process took off the gold wash, not a big deal to me. It coppery underneth now. Is it cast iron? I wouldn't mind putting a coat of paint on it as I have seen some old ones sprayed new at other antique places. What do you all think? Oh ya, does anyone know the maker? It has the number 240 in a lower corner in the back. It almost seems to be tarnsihing as it's drying out right now from cleaning.Not all the green is off I just noticed so it looks like I will be cleaning some more.