Pony Express First Day Cover Color Slide, Jan. 3. Slide transparency of Pony Express mail covers donated by U.S. Philatelic Society in 1974.
Circular hand stamp: San Francisco, Cal. Jan. 3, 18--
Addressed to:
Mr. J. King Watts
Solicitor
St. Ives-Hundtondonshire
England.
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Pony Express Stamp, Pony Express First Day Cover, United State Philatelic Society