My one and only Ace

I was 19 years old and I was playing with a good friend and another fellow who joined us on the first tee. My buddy and I played every Monday back then since we both had that day off from work. I recall it being a beautiful, sunny day with no wind. The 13th hole is an uphill par 3, 150 yds long. I hit a 7 iron and pushed it a little right. There was a mound on the right side of the green and the ball landed half way up the mound and kicked left towards the hole. The pin was pretty much center of the green so the ball rolled down the slope approximately 20 ft to make it to the hole. I have been soooo close on many other attempts over the years but never scored another Ace!