The Pennsylvania Gondola Car No. 2452X was available during 1946 and 1947. The "X" is the degination that Lionel used to indicate that this car was included only in sets.

Produced on a BLACK body with WHITE lettering, this car, unlike the No. 2452, did not have a brake wheel. Equipped with staple-end trucks with electronic coil couplers that are attached to a metal underframe that is held in place by four fillister head screws one at each corner. This gondola car is stamped on the underside with the number "2452X" and did not come with barrels.

There are four variations:

Variation A: Type 1a body with small "G27" and Type 2 trucks. 1946 production.

Variation B: Type 1a body with small "G27" and Type 3a trucks. 1946 production.

Variation C: Type 1b body with small "G27" and Type 3b trucks. 1947 production.

Variation D: Type 1b body with large "G27" and Type 3b trucks. 1947 production.