The open door policy is where every country has equal trade in china
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.
Adolf Hitlers he is a German politician that who is a leader of the Nazi Party, he was born in April 20, 1889, and he died at April 30, 1945.
Answer:
Use of copper and a lot of the nations money left us in the great depression.