This is a very Small Micro Machine Railroad Diesel Passenger type Locomotive and 1 RPO (Railroad Post Office), 1 Double Decker Car and a Bob Tail/Dome Observation Car marked Micro Machines.  This is made of plastic and is highly detailed, Note the locomotive cab.   The body of the locomotive is about 2 1/8 inches long and the cars are about 3 1/8 inches long.  I bought this as part of a job lot and it is in very good condition.

I will gladly combine these small items to save on the shipping.  Each additional Micro Machine item would be just $.25 for shipping.