First picture is from 2007 of this deer and we estimate he was around 4-5 years old at that time.
Second picture is from this year - we are LF and our neighbor took him today. So he was either 14-15 years old. We named him Houdini because we would get camera pics before the season and then he would disappear - we think he may have been sighted once on our ranch by a hunter but the sighting was a long way off and not sure it was even him. Otherwise he was never seen alive until the neighbor did last season.
We did not get pictures of every year but did on many of them. Couple of years he had drops and others he did not. Pretty amazing life he lived. They are going to try to get his teeth aged but I do not know how you tell once one is over 10 years old! Thought you would enjoy
2007 - age 4 or 5