A.G. Emery 1864-1870 Holyoke Silver Lead Mine, Marquette, Mi. [Lake Superior Views]
Stereoview, back Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-ppmsca-10489 (digital file from original stereograph, front) LC-DIG-ppmsca-10490 (digital file from original stereograph, back)
