This is an American Model Builders 484 O Elevated Warehouse

The Trainz SKU for this item is P12310671

one end of the original body was simply extended to fit the new underframe

Model Number: 176-4365

Trainworx Inc 262219 N Sacremento Northern Steel Gondola #4019 LastUpdated_20262107090618 This is an American ModelThis is a Trainworx Inc 262219 N Sacremento Northern Steel Gondola #4019 . Features includes 46', 70 ton, all steel, drop bottom, general service gondola. Black car with yellow print equipped with Micro trains Couplers and Trucks. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Trainworx Inc. Model Number: 2622 19 Road Name: Sacramento Northern (SN) MSRP: $26. 95 Scale Era: N Scale Model Type: Freight