are you sure that only half of them were used? Remember that half the spokes are head in and half head out. So the marks on the outer faces of the flanges will only be on half the holes because those were the half that are head in. The head in spokes make by far the more noticable markings as the spokes have to bend slightly around the flange.

You are correct, and my nebwie-ness has been fully revealed . There are indeed marks on the inside of the flange, and they are noticeably smaller than the gouging on the outside of the flange. I will try to imitate the old lacing pattern, thanks again.