Gibson has moved the position of the bridge pickup reicently because it was not in the exact position where it used to be in the 50s and some complained about that. This means the cutouts on gibson pickguards may vary as well. it's best to meassure the distance between the two pickup rings and compare that with the specs of the supplier. If the exact meassurements aren't available stay clear and try to find one at a local sture (LP pickguards shouldn't be too hard to find). You can make a cardboard template and take that to the shop to compare the cutouts ... just a thought.