Ore and Rock Drilling Machinery | University of Illinois Archives
Ore and Rock Drilling Machinery
Sepia tone photograph showing (left to right) air meter tank for measuring air consumption; concrete block for testing rock drills; and diamond drill outfit.
Found in RS 11/1/10, Vol. 3
Image Measures 23.6 x 18.4 cm
University of Illinois Archives
Copyright of this image is held by the University of Illinois. Please contact us if you would like to purchase a high-resolution copy of the image.