The Trainz SKU for this item is P11978276

This is a Preiser 4511 HO British Aviators Lines Up Figures (Set of Six)

like EMD's F-units they had room for a passenger-service steam generator at the rear of the engine compartment

Here is a Williams 43104 CB&Q 72' Streamliners Passenger 2-Car Add-On Set

Keil-Line Products O Great Trains Powhatan Arrow ProductID_12262027 The Trainz SKU for thisThis is a Keil Line Products O Great Trains Powhatan Arrow Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Keil Line Products MSRP: $14. 99 Category 1: Parts Category 2: O Modern Parts The Trainz SKU for this item is P12605494. Trainz Product Id: 12605494