On Youtube you can find a fight between Rocky Marciano and Joe Walcott.
A seriously tough and demanding fight for both men.
Marciano once said it was his toughest ever fight.
I watched it last night though I was seriously distracted by the rows of 4x5 cameras lined up at the foot of the ropes by the press photographers.
I couldn't make out the models, but very interesting watching them work.
Seemed like two 4x5 loaded cameras each. One exposure then change the film holder rapidly, always having a camera with an unexposed sheet ready for the next shot.
Worth a quick watch just for the nostalgia.