Photograph of chief driller K.M. East inspecting a drill bit, ca.1940. East can be seen at center squatting over the drill bits which lie on the wooden floor below. His coveralls are lightly-colored with spots of oil and his large, leather gloves grasp the teeth of a drill bit on the right. The drill bit is darkly-colored with dirt dusting the worn teeth. A small machine sits on the left of East while two other drillers stand near the larger machinery in the background. Photoprint reads "K.M. East, chief driller who has nursed the record-breaking drill through which progress the earth's crust is shown here examing the teeth of the bit just withdrawn".