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Locomotives / Individual Locomotive

Whistle

Locomotive Builder's Plate

American Locomotive Company
November 1941

A builder's plate is bolted to both sides of a steam locomotive's smokebox. It indicates the completion date of the locomotive, rather than any specific parts. This example is from the park’s Union Pacific Big Boy locomotive number 4012.

Steel. H 7.5, W 35.5, T 0.6 cm
Steamtown National Historic Site, STEA 3210