This is a Hornby O gauge clockwork locomotive from 1949, with product number 501. It comes in a green LNER livery and is boxed with the product number 5508. The locomotive is pre-assembled and does not require any modification. It runs on clockwork power, making it a great addition to any collection of model railways and trains. The gauge is O, and the locomotive is of corporate livery type LNER. This item is perfect for collectors of vintage and antique models.