Geale weighed in unofficially at 182 after weighing in officially at 157 the day before. He was fully clothed at 182, so probably around 178-180 without clothes.
Well, in that case Rocky could get down to 135. There was after all 30+ lbs of solid muscle separating them.
Tyson weighed far more than Marciano, his natural walking around weight is far heavier than Marciano`s.
With enough time and done correctly - ie gradually over 6 months - Marciano could definately cut to welterweight, especially with the bs day-before weighins of today to cheat any last few lbs.