Vintage black and white photograph of a Union Pacific Challenger locomotive pulling a sleeping car.

Vintage Union Pacific Challenger Locomotive Real Photo Postcard – Sleeping Car, Unused & Pristine

This vintage Real Photo Postcard (RPPC) features the Union Pacific Railroad’s iconic “The Challenger” locomotive, showcasing a sleeping car. Measuring 3 1/2″ x 5 1/2″, the unused postcard displays a…