R01bm B&O Tyson Boxcar Civil War era, MT

Just like our R01b 1860s period Tyson boxcar but made to accept MT Z/Nn3 coupler pockets. Includes semi-working and working link and pin couplers plus dummies. 2 varieties of trucks included, one pair a USMRR/Pennsylvania type, the other a more common wooden style. Mount with a #1 screw or pins supplied, requires 33" wheels with MT width .540" axles . Meant to use Microtrains brakewheel and stantion parts for flatcars, which are sturdier than  a printed wheel and wire shaft.  See also R01bim with interior and separate doors.