Make: Empire (Empire Transformer Corp.)
Model: B-31
Country: USA
Manufactured: c1921
Toy Type: Stationary

Power Source: Electric
Boiler: Vertical
Engine Type: Vertical
Cylinders: 1
Cylider Action: Single
Valve Action: Slide

Type Code: EV/V1SS (?)

Train Figure (if present)

Notes:

Empire Transformer branded B-30 and B-31 engines are the earliest versions coming before Harvey Electric and Metal Ware brands.

For more info read: From Elektro To Empire