1994: 1900 Burlington Northern #637500 (D&E) articulated TTUX flatcars with Conrail Mercury trailers were produced by Lionel for LOTS' 15th National Convention in New Brunswick, NJ. These were the second two units in the BN set started by the 52014 cars the year before. Graphics on the car are different on each side, and the trailers are individually numbered. (Lionel catalogue No. 52041). 1994: 1000 LOTS Tractor-Trailer units with CN Intermodal Laser Service #197993 trailer were produced by Lionel for the New Jersey Convention. The trailer here is identical to the one on the 52042 single TTUX car, except it is sequentially numbered. (Lionel #52048).