A substantial collection of vintage postcards and paper ephemera related to the Famous Crystal Cave in Kutztown, Pennsylvania. The items, published by the Crystal Cave Company, Inc., date primarily from the mid-20th century, circa 1950s-1970s. The collection features color and black-and-white photographs depicting interior cave formations such as the Rear Cavern and Frozen Fountain, as well as exterior views of the Administrative Building, grounds, and visitor activities. Included are variant informational inserts (red, blue, and black-and-white) providing details on the Natural Underground Wonder, discovered in 1871, located midway between Allentown and Reading. This lot includes promotional postcards, some marked Self Stick Post Card, and informational pamphlets, offering a comprehensive view of the historic tourist attraction.

Condition
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