Bowser Manufacturing Co.
Pennsylvania Railroad Class GLa 2-Bay Open Hopper - Kit (Plastic)

New York, New Haven & Hartford
Walthers Part # 6-56225, p. 186 Walthers 2011 HO Scale Reference
HO scale, $13.95, sold out at Walthers

 
Bowser easy-to-build kits feature plastic molded bodies, underframes, brake platforms, brake wheels, coal loads (where appropriate), free-rolling trucks, nonmagnetic wheels, x2f couplers. Other features include authentic painting and printing, and coupler pockets that accept Kadee #5 couplers.