I agree with the AG-03 grade. For most US coin series you're getting into the AG range when the rims become worn down to the point that they merge with the lettering.
FYI, your coin appears to be a San Francisco mint. The mintmark is at the 8:00 position next to the rim on the reverse. At least, it looks like an "S" in your photo. The other possibility would be "D" for Denver. In the AG grade range all three mints have about the same value. In higher grades the Denver and San Francisco coins are dramatically more expensive than the Philadelphia (no mintmark) coin.