Car Notice. When military shipments are loaded by or under the supervision of the military services on open-top
rail equipment in accordance with drawings approved by the AAR, Mechanical Division, but which have not been
published in the Open Top Carloading Manual, a locally reproduced 5- x 7-inch notice (water repellent or otherwise
protected from the elements) as fellows, will be prominently affixed to the car:
The "authority" space on the notice will be completed by entering therein the drawing number or, if not available, the
letter reference of the Mechanical Division, AAR.