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BIG BOY Union Pacific Steam Locomotive History Of Railroads Train Silver Coin 5$ Liberia 2011


"History of Railroads" proof series is dominated by a splendid full-colour design portraying the world's most well known trains. This issue honors the Big Boy locomotives and the Union Pacific Railroads. Official legal tender of Liberia, each coin is an extremely exclusive limited edition.

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Big Boy Locomotives
Big Boy was the name of the Union Pacific Railroad's steam locomotives, built between 1941 and 1944 by American Locomotive Company (Alco). The 25 Big Boys were the only locomotives to have the 4-8-8-4 wheel arrangement, which combined two sets of eight driving wheels with a four-wheel leading truck for stability entering curves and a four-wheel trailing truck to support the large firebox.
Twenty-five Big Boys were built, in two groups of ten and one of five. All burned coal, and had large grates to burn the low-quality Wyoming coal from mines owned by the railroad.
Postwar increases in the price of both coal and labor and the efficiency of diesel-electric motive power foretold a limited life for the Big Boys, but they were among the last steam locomotives taken out of service.

  • CountryLiberia
  • Year2011
  • Face Value5 Dollars
  • MetalSilver
  • Fineness (purity)999/1000
  • Weight (g)20
  • Diameter (mm)38.61
  • QualityProof
  • Mintage (pcs)1.941
  • Certificate (COA)Yes
  • Presentation case (box)Yes
The coin is dominated by a splendid full and vivid colour design portraying a Big Boy locomotive of the Union Pacific railroads. The coin’s obverse depicts the Liberian Republic emblem.