Thanks folks. I think the split between VG and VF is telling me the grade is probably F Details (ED). Reviewing the
ANA grading descriptions found on shieldnickels.net I think that's probably reasonable.
My thoughts on cleaning were focused on the green goo areas. The rest of the corrosion is what it is. I have both acetone and Verdi-care so I'll try the acetone first and then Verdi-care if I get no results. The motivation is the green goo looks bad and removing it will hopefully improve the looks and maybe prevent further damage although perhaps that ship has sailed.
Also, when the coin came to me it was in a 2x2.
Thanks for the inputs.