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

Clinchfield
Walthers Part # 6-37429, p. 72 Walthers 2012 N&Z Scale Reference
N scale, $13.95, currently in stock 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.