cowseatmaize
Well-Known Member
We all do, There are many cases where the method is only known by the people who did them. But since they've mostly passed away we can only figure from what's been documented or speculate ourselves.I still have a lot to learn from this forum.
I was trying to be argumentitive in any way.
As for the lip I do see the seams. Now I'll speculate and hope someone can back me or prove me wrong. I'd be just as happy with either.
I does look like a seam but I'd guess it was formed in a mold by clamping 2 halves around a matching thread, kind of like pressed glass. Then cutting off and applying it. This is only because my brain still can't think of a way for it to be a fully a automatic single stage process.
I can think of a way to automate it in 2 stages or by a seprate machine but I don't know if it was ever done that way. It would be similar to above but done by a machine.
I would guess that such a machine would have been made a while after the Owens, perhaps around 1912.
Maybe Roger will check in. He's from where most of those were made and may have researched it. grimdigger1 and others may know too, I don't though.