The Lionel #3459 Automatic Green Dump Car is an 'O' Gauge model from the 1950s, manufactured in the United States. Made of steel and diecast material, this vintage piece is ready to go with its pre-built status. The green color and scale of 1:48 add to its collectible appeal. As a part of the Three-Rail System, this Lionel brand freight car is a classic addition to any model railroad collection, especially for enthusiasts of vintage trains.