I just aquired this bottle yesterday. I have one question for you all. What is going on with the bottom? It has rust residue like an iron pontil but it is not old enough. Any ideas? Thanks RobbyBobby64
I think the residue is just rust from being buried next to something metal. There's no reason for iron residue to be left over from the manufacturing process on an Owens scar.
It's a scar from an Owens-type (suction-transfer) machine, but it is not an Owens-built machine. Similar machines have a different size scar and/or an offset scar as they couldn't legally copy Owens' patent.