Couldn't find one LG, the plating on the Snap On is not real fancy. Pat # is 3273430. Maybe the date code was where they drilled for the roll pin.....lol. BTW, this is one tool I'll likely NEVER use. Must've been an expensive tool at some point for it to have a Snappy socket as part of the package. Couldn't find a manufacturer on the ratchet handle(metal part). Other than the external snap rings having a bit of bend to them on the male hex piece, this thing's in pretty good shape.
Thanks,
DM&FS