Lanz Rail Tractor.
Many separately applied details.
Buffers on the front.
Coupler hook on the back.
Unpowered, but can be rolled.
Length approximately 4.5 cm / 1-3/4".
Lanz Rail Tractor. Conversion of a 55 hp Lanz Bulldog with a wood frame to a locomotive.
This vehicle can still be seen in a German museum.