Same item modifier, different Ratings?

Same “Wounds” blessing on Curio, but all 3 have different Ratings for “Wounds”.
I’m sure there are other items out there, but this is the most prominent one I’ve found.

yeah, those + wounds/Health/toughness/stamina blessings have a range of rating.

f.ex 1-50 = +1 wound, 51-100 = 2 wounds etc.

don’t know the exact range values though