1879 CC VAM 3A Value?

Very tough call, since it was just identified this year. I note, though, that there are already a few examples in differing grades listed at VAMworld, making me think it's not going to be too uncommon in circulated condition. What happens in these cases, where a new die state of the original is identified, is that everybody who has a VAM-3 goes through their stash and the known examples of 3A tend to come to light quickly. At least, those who are willing to publicize what they have, which is a fair number in this case.

I wouldn't call it much of a "premium" over a regular '79-CC, but that's not exactly cheap in the grade you mention, either.