thats a sweet bow good hit right there and not that bad of condition...as for the blisterd finish I would venture to say the thing that caused that normaly would be from using the bow on warm or wet day and then placing the bow into one of those black vinyl zipper cases and then leaving the bow in the car putting it in the barn or basement still in the case and not wipeing it dry.
Give it a try some time(works best on future wood or micarta handled bows)when its nice and warm out set the bow in the sun(unstrung) for 1-2 hrs and then place it into the black bow case and then in the car for an hour.She'll be soaked with sweat and if you keep doing that very often what you see is what you get bd