Chris,,Members...
See what I'm after is some sort of a standardization [if possible].. If there ever is going to be a big market again for these rings there must be a way for authentication..

What I would say is -

1-,,,there is a big difference between the early and later pattern. Big difference is the shape of the band. Early is flatter,,later, more convex outer shape.
2- that just by coloring and wear characteristics there is also a difference between the material alloy of a early and later pattern.
3 - Both rings appear to be a band with a separate skull soldered on.
4 - The early pattern [33 to 39] does not have the flaw at the bottom of the Left Sig rune. Only 40 to 44 does.
5- The early pattern the swastica has a more squat or elongated appearance.
6- There seems to be more hand work done on the later patterns.

Members whether you want to discuss something else here thats fine,,,BUT, can we at least agree to the 6 points above? And,,if you are aware of other points that should be added please add them here. Thank you..