Textbook punchers (not only KO artists)

[SugarBoxing]

I am trying to build finally first crude understaing of punching technique as a whole
Right now, the gap is to extablish the connection between body acceleration or deceleration and the snap

I want to build database for the best punching examples, gonna post gifs here to find common denominator, as well as some individual differences. I will comeback soon with gifs to study. I guess I will start with Jack Dempsey
I have rewatched at slow mo his fight with Willard, I was amazed with the finess of his punching and fighting techniques
Previously I did not see it
Truely, the better boxing gets the less people can appreciate it