Alright, I've posted this big gal several times before. Unfortunately although I know that it's the "hair coiled on top" with DIVA FAVSTINA obverse, I still don't know what type of reverse it is. Help!
Looks like ceres or juno. Tough cause of the wear. For me anyways. Also could be RIC 1111 on wildwinds for Faustina I too.
or the queen? ooh err missus....... Its a small plate shes balancing on her head anyway, its her xmas party trick.....
I agree this is AETERNITAS but there are other options for a DIVA coin. compare the two below. The angle of the staff on the Aeternitas denarius matches the OP design while the AVGVSTA tilts the other way.
I didnt mention AETERNITAS in my original post because I figured it was assumed thats what the legend was. I only replied in regards to which figure is actually standing. Wildwinds has a worn type which I already mentioned the number it is that seems really close. Without looking at the coin in hand and under a loupe it would be hard to pick exactly based on these photos. The angle of the hand and lightly engraved scepter in this photo looks to match the OP coin, which is very worn in the scepter area & being to lightly engraved, easily worn off is a possibility. http://wildwinds.com/coins/ric/faustina_I/RIC_1111.jpg
As I said before, I agree with your attribution. This is partly because of the SC in the fields, if you look closely you can see what appears to be the remains of an S on the left side of the reverse.