"Uncle Larry" - Administrator
Whoops, my bad. I meant the shells Ludwig used for their top end drums at the timeYou are off by a couple of decades.
Classic Maples came out in the mid 90's.
Standards were from 68 -82 so they used the same shells that Ludwig was making at the time so that would be three ply with rerings up until '78 or so or until they ran out of three ply shells. Then it was four ply shells.