This real photo postcard (RPPC) depicts Pennsylvania Railroad steam locomotive #6794, a large M1-class Mountain-type engine, shown in profile at trackside with heavy smoke billowing from its stack. The tender is lettered "PENNSYLVANIA" and loaded with coal, and a crewman is visible in the cab window. Fine mechanical detail is visible along the boiler, running gear, and drive wheels.

• Type: Real Photo Postcard (RPPC), continuous-tone photographic image
• Subject: PRR Steam Locomotive #6794, M1 Class Mountain-type
• Era: Mid-20th century
• Finish: Black and white, matte/semi-gloss
• Condition: VG+

Items are packaged securely and shipped fast.

Keywords: railroadiana, PRR, Pennsylvania Railroad, steam locomotive, M1 class, Mountain type, real photo postcard, RPPC, transportation memorabilia, railroad photography

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