now im jealous, the serial tag was missing from my Atlas 12x36, as was the nameplate on the head stock. mine came with a fresh coat of John Deere... I always wondered if the nameplate on the headstock for an Atlas lathe, or a Craftsman had the same mounting holes.... anyone know this? I was thinking mine was a mid 50's machine, it doesn't have the lever for cross feed, pull type, and the PO also had changed the headstock bearings, for what reason I do not know, he even said there wasn't anything wrong with them, just did it as part of the overhaul, so there went that possible dating info.
what year is your SB?