Montana - 1965
First I'd like to say, like several others have, this is a great idea and a super thread. Also, Breaksrunner's contributions are most interesting and informative. Keep it up!
Here are a couple of old pictures I have to contribute. Both of these animals were taken in 1965 from an area that later on was purchased by the State and became the Beartooth Game Range near the north end of the Big Belt mountain range.

My friend, Al Bergum shot this bull, shown here with my wife an oldest daughter. We spent some time and effort to show it off to our friends. Then Al, who had never killed an elk before, stashed these tremendous antlers in the rafters of his garage. They stayed there until 1985 when the Rocky Mountain Elk Foundation held its first banquet in Helena. The antlers were measured and then displayed at that banquet. After 20-years in storage they netted 373" B&C!

The following weekend I went back to the same general area where Al had shot his bull and found this buck. It remains one of the largest I've taken. It was 28" wide and unofficially scored 176" B&C.
Sorry, we didn't make a practice of carrying a camera in the field in those days. I would love to have had some good field photos like we take these days.