Judging from the size of the base's he is older than 1 1/2. I have never seen a 1 1/2 year old buck with base's that big, not even from Canada. The depth of his chest would help a little and he seems to have a pretty long nose, to long for a yearling. I would say a 3 1/2 with rack size issue's. He will more than likely have a small rack with a lot of mass the rest of his life, but I would still eat him, lol