One of my employees brought these in the other day. He found them on the surface of a trade camp along the Colorado river. I think they are: Bat winged Perd, Pandale, and split base Ensor drill. The flint in the perd is exceptional. Happy Hunting !
Good stuff. Would be interesting to know if they cooked the rock first and then knapped it or if the glossy petina on the heads are from natural wind/sand/ rain elements.