One additional note. The pressed steel construction makes me think the set is complete and early. I have a pressed steel 7-wrench set with FSNs stamped in it. I also have a Cornwell pressed steel 7-wrench set. I could be wrong, and I'd have to really triple check my notes, but I don't recall seeing a pressed steel 9-wrench version, when the ORD was probably exclusively buying more modern forged (e.g., Duro, etc). I have Kastar K-Star 9-wrench sets that are pressed steel, but those are a different story, much thinner and cheaper.