Postmark, End of Ysleta's postmark
August 20, 2026
Ysleta’s independent postmark ended at 6 p.m. on July 31, 1959, when mail ceased to be canceled as “Ysleta, Texas” and the community’s postal identity was absorbed into El Paso following the city’s annexation of Ysleta on May 15, 1955. Cleofas Calleros argued that the historic postmark deserved…
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