I am trying to identify the Maker/Manufacturer. I've done research and been able to determine the two middle marks (thanks to your wonderful website) but regarding the FB9 in a square/rectangle I am coming up empty. I believe the last mark (the "F" in a circle to refer to the year "1915") but if anyone has an expert opinion on this as well I'd be grateful...
I thank you in advance for your time & knowledge.
Mike


