Yes. Many companies sprang up in the past and used letters close to the established services. ANCS, ANACC, IGS, IGG, IGC, PGCS, PCCS, NCG.
I wondered the same thing regarding the "specimen finish." I still don't understand how graders can tell a "brilliant field over a brilliant relief," over a regular uncirculated coin just off the press? Additionally, if this coin did circulate, would one be able to tell it was a specimen piece through circulated wear? I am guessing not, but couldn't hurt to ask.
The definition may be correct, but the coin looks like a regular uncirculated issue. I don’t think it’s an MS69 either, so I wouldn’t trust that label.
Yes, that is the "Satin Finish" coins of the mint sets from 2005-2010. the companies didn't know what to do with them fora couple of years, Some got SP grades or SF grades and regular labels, some got a "satin finish" or "specimen finish" label and an MS grade. PCGS and NGC were all over the place with it, and so where everyone else. And every company graded them higher than they ever did any of the actual "MS" circulation strikes.
I had an entire 2009 mint set in specimen slabs stolen from me a couple of years ago. The slabs, of course, we worth far more than the coins. Here's the insurance photo of the Sacagawea from that set.