Subject: Onyx Pillars in Mammoth Cave of Kentucky
Location: Mammoth Cave, Kentucky
Origin (Mailed From): Cave City, Kentucky
Destination (Mailed To): Miss Raymond/Jean, 523 Cedar Ave, Sharon, Pa.
Cancellation Date: October 28, 1948 (5 PM)
Stamp: 1-Cent Green George Washington Stamp attached with black circular postmark and wavy line killer cancellation mark