On the outside of the box, this Chicago pennant logo almost certainly
represents the manufacturer, probably one of railroad equipment, possibly
the Chicago Railroad Signal and Supply Company. Anyone know? Those names
are so generic they make for difficult web searching.
The 97-5 reflects a forging date of May 1897, which matches the time
period the B&O was building the line here. Two year digits were displayed
because, well, there wasn't much concern about confusion with railroad
equipment from the 1700s.