The Minneapolis & St. Louis Quad Hopper Car No. 6536 was available in 1958 and 1959, and again in 1963. This 50-ton quad hopper was painted RED with WHITE heat-stamped lettering. Showing "BLT 6-58" printed on the sides, this car has a center brace and a brake wheel but it did not come with covers.
There are three variaions:
Variation A: Came with bar-end trucks that had tabbed couplers. 1958 production.
Variation B: Came with AAR trucks and disc couplers. 1959 production.
Variation C: Came with AAR trucks one that had a disc coupler and the other is a solid non-operating coupler. Lionel was using up existing body shells. 1963 production.