Pennsylvania Railroad v. United States

Plaintiff and its connecting carriers transported carload shipments of ammunition for cannon with explosive projectiles, ranging in size from 40 to 90 millimeters. The shipments moved from points of origin in Oregon, California, Arizona and New Mexico to points of destination on plaintiff’s lines in New Jersey and Ohio during 1948 through 1954.

After the services were performed, plaintiff billed and was paid freight charges computed under a through single factor class 65 rate from point of origin to destination, as provided *3in an A.A.R. Section 22 Quotation No. 14-A for carload shipments of…