Some of my favorite signs are from businesses that used to work with metal. I'm sure there are important differences between what these people do or used to do, but it's all metal to me, baby, so I'm lumping them together.
So, in what is becoming a bit of a pattern, we've got some pretty generic words painted on the side of a wall without much other identifying information (maybe now you know why I've been sitting on these for awhile -- look at those green leaves!). I'm pretty sure you could get aluminum and bronze-brass from these people, but I really wish they'd just put their last name or something up there too.
I had brief hope for a clue from this shot:
But after studying it, I think it just says, "Ornamental Iron & Steel." Sorry, no luck.
The building is part of the Nordeast "Arts District" in a largely defunct old industrial area by the railroad tracks. It's now called the Q.arma Building and houses Altered Esthetics, an arts advocacy organization. It's at 1224 Quincy St. N.E.