You are bidding on a lot of 40 authentic indian arrowheads.  Collected by Great Grandmother around 125 years ago in Humbolt County part of Northern California  Heads range in size from 1" to 5"  with majority being 1 1/2" to 2 1/2"  Heads used for hunting birds and game   The larger pieces are skinning knives and spear points. See picture for details