Unless they have done an additional run, then I have no idea. I normally won't comment on the markings as they have always been a mystery to me. I know that Jason engraved those before he left CRK as he was only part time at CRK. He and I worked together at the same full-time machining gig prior to 1999. I actually worked part time in the same building as CRK in the adjacent shop, but we both left the full time and moved on to better opportunities in 1999. I want to say that Jason and I left our part-time jobs in or about the same time frame, which was maybe 1997 or so.
Regardless- Unless there was one initial run on those of say one for Ritter, and they came back MUCH later and made an additional, limited run, those are much older than the original estimate. ( I could swear that he made or engraved several pieces. ) I could probably send him a message asking him how many he engraved if he is around today...Since working at CRK, Jason has gotten an engineering degree...Those guys like to take LOOOOONG weekends.. ( I must finish my engineering degree