Three men and one woman picking huckleberries using bark baskets. They are, left to right: Rev. Jesse Laws, Mona Roberts, Harmon Roberts, and Tom Faulkner.
Caltrop or calthrop. Large numbers of them would be scattered on a road or trail to slow down pursuit by cavalry. When a horse stepped on one, it would bruise or puncture the sole of the hoof and make the horse go instantly lame.