I have a Snap-On FP-41 Hex Bit socket that I'm struggling with the markings on. I've found what appears to be two date codes present. The first represents what is documented to be a 1955 date code (after "Snap-On" and before "FP-41". The second is 4 much like what is documented as 1954 (after "USA" and before "Snap-On"), but with a bow on the bottom (like a bowl) versus a flat bottom as documented.
Was it common to have two date codes represented on Snap-on tools? I've now seen two that had duplicate date code. However, this is the first I've seen that isn't documented exactly as the markings look.
Any insight would be appreciate - meanwhile I dig for more info.
