The threading is called huck variation by Russell E. Groff. I experimented with twill tie ups, but treadled as drawn, 121, 343, 121, 565, 787, 565.
Weaving in the reed was 20.5, “ and the shrinkage was 15%.
Total warp ends: 414 plus 1 floating selvage on each side.
Towel was hand hemmed.