[oldeboo]

On Adams, Gibson, and Wagner are you able to make out what it says in the bottom left of the images? That is certainly a clue. I'm not sure if that was discussed before. It looks like it says something "& Co." It's hard to make out from the images.

Also, just to be sure, when looking at these in hand is there any chance the "Pittsburgh" and other added color was done by hand on these? Or does it appear to be added prior to printing?