Government Printing Office: Washington, 1903. Hardcover. Very Good. Item #21-2366
Thirteen/thirteen plates, 12 x 9", brown cloth, gilt lettering, 463pp + ads. EX-LIBRARY, covers well worn and rubbed, corners and spine tips bumped/worn, inner hinges/textblock cracked, covers loose. Plates show "Scrammers In Mine Using Caving System", "View Of Main Level Timbering", "Minnesota Mine"