Idaho-Maryland Mine, one of the largest gold producers in the U.S.

Front:
IDAHO-MARYLAND MINE, ONE OF THE LARGEST GOLD PRODUCERS IN THE U.S., GRASS VALLEY, CALIF. K-276

Back:
1-4-97 THIS SPACE FOR WRITING MESSAGES PLACE STAMP HERE CLEAR VIEW POST CARD MANUFACTURED BY WAYNE PAPER BOX & PRTG. CORP., FORT WAYNE, IND.