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except that it has no window openings on the sides of the rooms

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Athearn Genesis G87498 HO Scale GATC 2600 Airslide Hopper Pennsylvania PRR GACX 44144 ESC and Receiver except that it has noAthearn Genesis G87498 HO Scale GATC 2600 Airslide Hopper Pennsylvania PRR GACX 44144 For the first half of the 20th century, bulk goods were usually bagged and carried in boxcars. After the late 1940s, covered hoppers greatly simplified the process by allowing the bulk material to be poured in through the roof hatches and dumped out the hopper bays. However, flour, starch, sugar and plastics do not flow easily from a standard hopper bay. To solve