The A.T. & S. F. Caboose No. 6017-185 was produced in 1959 and 1960 on Type 3A and Type 4 dies. LIGHT GRAY painted RED or BLACK plastic SP Type with RED or MAROON heat-stamped lettering. Note that only the number "6017" appears on the sides of the car. Only one heat-stamp was made for this car so this number is always to the right on each of the caboose sides. A blackened sheet metal chassis with hand rails fastens to the body with tabs. This caboose came AAR trucks with one disc coupler. There are two variations:
Variation A: Die 4 with ladder slots.
Variation B: Die 3A without ladder slots.