| Owner: | Pennsylvania Railroad |
| Type: | Box Car |
| AAR Class: | XP: Boxcar similar in design to "XM", but which is specially equipped, designed, and/or structurally suitable for a specific commodity loading; except, boxcars (XF, XM, XMI) dedicated to the transportation of commodities in paragraph A, Rule 97, AAR Interchange Rules, must be designated "XP". |
| AAR Type: | A100 |
| Detail Info: | Equipped Box Car, Inside Length: Less than 49', Other type door/opening |
| PRR Class: | X29 |
| User Notes: | X29 blt 11/1929, in sand service |
