46101 is an ex-EL caboose wearing an "R" designation, meaning it's in restricted service (as also evidenced by its MOW gray paint job. These specially designated cars were to be kept to special service due to their ages or conditions. In this case, probably the friction bearing trucks.
Photo By
Year
Original Date
10/19/86
Location City
Equipment Type
Conrail Number
Submitted by Ed Kapuscinski on