55 x 44 centimeters folded to 23 x 11 centimetersJPEGUMN_ALMA:9927499060001700eng[publisher not identified], (Minnesota?)PublicLake Superior International Highway : from Duluth to Fort William-Port Arthur through the beautiful arrowhead country of Minnesota along the "deep sea water" to the land of the Nipigon, Canada.MapsMinnesota--Lake SuperiorMinnesota--Lake NipigonOntario--Lake SuperiorOntario--Lake NipigonMinnesotaOntarioCanada1920-1929University of Minnesota