Pony Express First Day Cover Color Slide, Sept.11. Slide transparency of Pony Express mail covers donated by U.S. Philatelic Society in 1974.
Elliptical hand stamp: Pony Express, San Francisco, running rider, Sept. 11 over Wells Fargo red stick stamp on Wells Fargo cover
Addressed to:
Geo. J. Whelan Esq.
No.46 North Charles St.
Baltimore, Maryland.
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Pony Express Stamp, Pony Express First Day Cover, United State Philatelic Society