Based on prototype cars used to calibrate track scales, these diminutive models are perfect for displaying on a siding in the yard or a spur at an industry. Scale test cars were regularly reweighed at a railroad's shop, giving you a great reason to run one on your railroad. Whether you load one on a flat car or haul one at the rear of a train, there's a lot you can do with this car to enhance your railroad's operations. Features of this model include:
  
 Diecast body for maximum weight
 Roadname specific details such as side and top access doors, wheel bearings and hand brake types
 Factory installed wire grab irons
 Multiple photo-etched brass placards according to prototypes
 33 scale inch RP-25 turned metal wheels
 Proto MAX(TM) metal knuckle couplers
 Use with the 933-3199 Cornerstone Track Scales kit (sold separately) to enhance operating sessions
 Use as a load for WalthersProto or WalthersMainline flatcars
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 Roadname specific features of this model include:
 Power hand brake
 Exposed wheel bearings
 Replacement top cover
 Round side doors with release wheel
