Keeping in mind the description of the stone point given in the story, we can state Marshall the rancher was looking at a Folsom point.
As it's known, a Folsom is a kind of stone point with a leaf-like shape which has a concave base and wide, shallow grooves/flutes running almost the entire length of the point.
I love quotes! Heres what it means:
Those who don't remember their mistakes from the past, will make them again.
They became more expressive and politically viewed
The telephone, the power plant, the refrigerated railroad car, the moving assembly line, and the car.
