Len Wickwar from Leicester, England, who had a recorded professional record of 465 fights - still a world record to this day.
Here he is in a 1939 non-title bout with reigning british lightweight champion, 19 year old sensation of the times, Eric Boon.
Entering this bout, Wickwar had not been stopped in his 82 previous fights. Since his last knockout defeat, Len had gone 72(41)-7-3. Wickwar would not be stopped again until nearly eight years later. Boon was his only stoppage defeat in a span of 91 competitive outings.

https://www.youtube.com/watch?v=iTJiGQdrWtw