@DonnaML thank you! I wasn't aware of the CAISER - that's pretty cool. Regarding the die study, my coin was imaged and used as one of the clippings in the study. Here's the screenshot and the tag says Breitsprecher, whom I purchased the coin from this year I had no idea until I encountered another CT post about how they identified the device on their serpent biga! So that was an exciting bonus. Thank you for dropping some more knowledge on me this is why I love CoinTalk!