Before revision: Reefer A refrigerated railcar, used to transport perishable goods A siding used as a passing place on a main line, where slow trains may be held whilst an express passes—a simpler, but less convenient, form of the passing loop Reporting mark A two- to four-letter code, assigned by the Association of American Railroads, that is applied to equipment operating on North American railroads to identify the owner Rerail frog or rerailer upright=0.5|A rerail frog or rerailerA metal casting slotted rerailer stored (on its side) on a locomotive.
After revision: Reefer A refrigerated railcar, used to transport perishable goods A siding used as a passing place on a main line, where slow trains may be held whilst an express passes—a simpler, but less convenient, form of the passing loop Reporting mark A two- to four-letter code, assigned by the Association of American Railroads, that is applied to equipment operating on North American railroads to identify the owner Rerail frog or rerailer upright=0.5|A rerail frog or rerailer stored (on its side) on a locomotive.