On a side note, those who live in Italy where beautiful jewelry making goes back centuries, take your TK ring into an old time establishment. Ask the jeweler who has been in the business for years and passed down through his family, what was the method that was used to manufacture your SSTK. And report back here your findings. I'm no jeweler, but I have owned several SSTK's over the years. And have identified telltale "fingerprint" flaws inherent to the 40's style of rings. Because of what was left in the cast and carried over to additional rings made from the same mold.
Unfortunately all jewelers who worked in '30 are passed away and young jewelers don't believe that at the time almost all rings were stamped under a press....already verifed by myself.
