Front:
The Entrance to Indian Echo Caverns,
Hummelstown, Pa., Near Harrisburg, Pa.
Back:
VISIT PENNSYLVANIA'S UNDERGROUND FAIRYLAND
A beautiful and historical underground wonderland,
carved by nature out of solid limestone, Indian Echo Cave
is located between Middletown and Hummelstown, 9 miles
east of Harrisburg, Penn.
74066
MADE IN U. S. A
TICHNOR QUALITY VIEWS"
REG. U.S. PAT, OFF. MADE ONLY BY TICHNOR BROS., INC., BOSTON, MASS.
