Equipped Box Car, Inside Length: 69' to 79', cushion draft gear/underframe, Plug door, opening between 9 and 11 feet
Insulated, Loader Equipped. Box car similar in design to "XM", with steel perforated side walls or equipped with interior side rails for securement of certain types of lading and/or permanently attached movable bulkheads.
ex-WP 67043
These former WP boxcars are owned by a company I don't know, so I guess I will find out later