A total of 300 cars were built by the PRR at Altoona between July 17, 1948 and October 11, 1948, in a numbered series 253500-253799. Welded construction was used for both the superstructure and underframe. The material was high tensile steel.  The cars had a plane welded roof and 14 roof hatches, each with a 3' x 3' opening. The metal runningboards were Apex Tri-loc. There were four bulkheads, creating five bays, each having two hopper openings measure 13" x 24". The Hopper bottom mechanism was furnished by enterprise railway equipment company. The horizontal sliding doors were hand operated, using rack and Pinion. The trucks were class 2E – F-22A made by American Steel Foundries with Type A-3 ride control. The couplers were type E with the Imperial rotary bottom operated uncoupling devices.

There were four PRR paint and lettering schemes on this car. First was the circle keystone as delivered in freightcar colour  FCC with white lettering. Second, some shopped cars received the gray body color with the CK scheme in black. Third, some had the shadow Keystone with gray body color with black lettering. And lastly, the Plain Keystone scheme with gray body color with black lettering was also used.

In addition to the PRR schemes, they were also painted in both Penn Central (gray and green) and Conrail (gray and red) schemes

FEATURES:

• Beautifuly detailed and accurately modeled
• Precision paint color and lettering schemes
• Many separately applied details including hand rails
• Detailed bay interiors
• Realistic removable coal loads
• Operating Micro-Trains couplers #1015 or compatable
• Minimum operating radius 9.75 inches