You successfully withstood an overload with a pressure test cartridge of 75,000 psi at the Springfield Armory?
OMFG. Crystal down? That's sacrilege, burn at the stake you heretic, burn I say! P.S. I hope the humor and sarcasm came across.
When imprinted like that, it also looks like an upside down Kon Tiki medallion. Given the forum this is posted in, that retty much eliminated any Eterna or other brand.
whatever it was, it was heavily polished, showed quite some wear (the mark left is not very crisp) ... I'd even go out on a limb and say that was a redial
