Arbor Mugs
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Description: The Ann Arbor Railroad (reporting mark AA) was an American railroad that operated between Toledo, Ohio, and Elberta and Frankfort, Michigan (about 294 route miles) with train ferry operations across Lake Michigan. In 1967 it reported 572 million net ton-miles of revenue freight, including 107 million in "lake transfer service"; that total does not include the 39-mile subsidiary Manistique and Lake Superior Railroad.
