i would say higher than G4...looks like VF20 + to me...dentils/rims are full, detail in the relief of the obverse look much better than even a VG graded coin...little bit of schmutz on the obverse but that might remove with the proper application...nice coin
Mike, if your interested in learning basic steps for grading go to ha.com, heritage auctions...use their filters on the left hand navigation to narrow down to your coin(s). Then look at the "sold" tab, top center of results. you can see tons of high end res closeups and get a good feel for what grade coins you have and with a quick, free registration, you will see what they auctioned for historically right up to date. its a great utility for any collector. you can learn a ton from that.