Underground, Calumet and Hecla Mine

Front:
UNDERGROUND, CALUMET AND HECLA MINE 12 2.1 MICHIGAN COPPER COUNTRY, IN THE LAND OF HIAWATHA'

Back:
MADE IN U. S. A. BY E. C. KROPP CO., MILWAUKEE 368 N #1108 TO ANYWHERE IN U.S. VIA AIRMAIL Co.