Bowser Manufacturing Co.
H-21a 70-Ton 4-Bay Hopper

Denver & Rio Grande Western
Walthers Part # 6-37428, p. 70 Walthers 2011 N&Z Scale Reference
N scale, $13.95, sold out at Walthers

 
Based on a common PRR prototype, these cars were used by PRR successors and a few similar cars operated on other railroads. Cars come equipped with correct Crown trucks and standard N (Rapido-type) couplers.