The 202 Union Pacific Alco unit was made by Lionel in 1957. Only A units were made, and the unit does not have a coupler on the front.
There are three variations of the Lionel 202 diesel. Two painted versions: one over a black mold, the other on a blue mold, and also a harder to find unpainted orange plastic Alco.
The unpainted version of the 202 brings a small premium. The painted versions are both equally ignored by collectors.