just how many world titles between 9 stone and 10 stone 6 pounds today

10st 6 is inside the welter limit, which is 10st 7, so light-middle shouldn't be included.

On topic (which I assume is to show how great Henry Armstrong is), I have to say, without denigrating the great man, but Henry Armstrong was the most disappointing fighter I ever saw (in comparison to the writeups) when I first started watching the old-timers. He was remarkable strong, had an excellent punch, chin and stamina, but was very predictable and his offense was just left hook, right hook, left hook, right hook, etc. They weren't thrown in combination either, just very straight forward and one-dimensional.

I believe his achievement of holding all three titles at once is one of the truly great boxing achievements, but I certainly wouldn't have him in my top P4P top 10 (where a lot of boxing fans have him).