I'm sure this topic has been covered before, although searching forums here didn't pull it up for me. Does anyone know approximately how many II+ units were made? It seems like there is some confusion out there -- the later dot matrix labels seem to end in the high 500,000s, but there are a few with earlier style labels in the 1000000s. Kind of confusing. I'm just wondering how close to end of production mine (SN: 588366) is.