
Union Pacific had the largest fleet of rebuilt boxcars with built-in grain doors, visible in the upper part of the right plug door. No. 520003 was rebuilt from an older 40-foot car in 1967.
Photo by Union Pacific
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| Last updated on August 8, 2025

Union Pacific had the largest fleet of rebuilt boxcars with built-in grain doors, visible in the upper part of the right plug door. No. 520003 was rebuilt from an older 40-foot car in 1967.
Photo by Union Pacific
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