The EK2 is not "C-square"- it's from an unattributed maker that used a square punch. The punch on your version is partly obliterated due to the curvature os the ring. There have been multiple threads on this mystery maker. They made high quality items.
I would hold onto the screwback until more info is perhaps found out about the "swan" chop. Otherwise you will probably see it being reoffered on the eStand at a 100%+ markup (if my suspicions prove to be correct).
Can we see a better picture of it?
I would hold onto the screwback until more info is perhaps found out about the "swan" chop. Otherwise you will probably see it being reoffered on the eStand at a 100%+ markup (if my suspicions prove to be correct).
Can we see a better picture of it?
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