Guess an age?

[medicsnoke]

I was shed hunting the other week and someone beet me to this apperant road kill. They had cut the skull plate off the deer and It appeared to be of decent size. I took a picture of the jaw bone cause im no expert on this........any guesses?

 

[muddy]

3.5 given the tooth wear, but 4.5 looking at the plaque build up.