Pony Express First Day Cover Color Slide, Jan. 26. Slide transparency of Pony Express mail covers donated by U.S. Philatelic Society in 1974.
Elliptical hand stamp: Pony Express returning rider, San Francisco, Jan. 26
Addressed to:
Churchill Crittenden
Care Marlborough Churchill
Sing Sing, New York.
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Pony Express Stamp, Pony Express First Day Cover, United State Philatelic Society