 In response, Swift financed the initial production run on his own, then — when the American roads refused his business — he contracted with the Grand Trunk Railway (who derived little income from transporting animals "on-the-hoof") to haul them into Michigan and then eastward through Canada.In 1880 the "Peninsular Car Company" (subsequently purchased by ACF) delivered to Swift the first of these units, and the Swift Refrigerator Line (SRL) was created.Within a year the Line’s roster had risen to nearly 200 units, and Swift was transporting an average of 3,000 carcasses a week to Boston.