August 3rd, 1955 Exhibition Bout
http://www.cyberboxingzone.com/boxing/rocky.htm
^^^just noticed CBZ updated the Marciano 'record'
The 'Lost' Fight of Rocky Marciano
Previous opponent from 1951 bout, fights Marciano again, while as champion.
Of his 23 career losses, he only lost 4 by TKO or KO; Marciano, Jackson and the other two were opponents when he first started out. Guys like Valdes and Williams were unable to knock him out. (concerning Keene Simmons).
Cyber Boxing Zone doesn't have the amount of rounds for the exhibition. So maybe we should go searching on that.
I reckon 'Rocky50Project' doesn't have to search any further. That's the ONLY other bout Marciano had in his career that was ever 'written off' or forgotten, least until now.
Not unless you consider the 'Fight Muscular Dystrophy' 'bout' with Jerry Lewis and Dean Martin as referee as a fight
