Yup, 3 1/2.
But that buck is a perfect example of why you can't use antlers to age bucks. Once you compile a census of enough unique bucks from a given area, you will find that each age-class of buck older than yearlings will have a MASSIVE bell-curve distribution of scores. In most long-term censuses I've done in the Southeast, I usually find every age-class has a score spread of over 100 gross inches, and every age-class overlaps heavily with every other age-class. In fact, I will usually find the the largest yearling buck scores higher than the smallest mature buck.