Looking for X Head Picture

Can anyone post a picture of what they know is a factory valve job on an X head? I just picked up a set of 1967 production date heads that are in quite good shape, but I think they may have had 1 valve job. I have 4 angles on the intake and some non-concentricity. I believe the factory valve job would have been 3 angles, something like a 10-45-75. Pictures anyone?