Walthers Mainline HO Rock Island #13978 ACF 5250 4-Bay Centerflow Covered Hopper The 50' ACF 5250 Centerflow covered hopper hauled plastic pellets, grain and feed from the 1960s into the 2000s. The 50' ACF 5250 Centerflow covered hopper hauled plastic pellets, grain and feed from the 1960s into the 2000s.
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