MicroTrains Line Flatcar w/Tire Load 3-Pack Northwestern Oklahoma (NOKL) N Scale

NOKL weathered 3-pk with tire load  - FOAM Nest 

These bulkhead flat cars were built in the early 1980s and are used today by the Northwestern Oklahoma Railroad. The reinforced bulkheads provide load protection as well as prevent shifting during transit. Seen here, they’re carrying large tires for earthmoving equipment.