The Moon, 8 1/2 Days Old

Front:
THE MOON, 8½ DAY S OLD, PHOTOGRAPHED WITH THE 40-INCH TELES COPE, YERKES OBSERVATORY, UNIVERSITY OF CHICAGO, WILLIAMS BAY, WISCONSIN. THE DIAMETER OF THE MOON IS 2,160 MILES.

Back:
Со 22176 MADE IN U.S.A. BY E. C. KROPP CO., MILWAUKEE WIS.