{"product_id":"the-last-of-the-free-seas-great-lakes-shipping-boris-artzybasheff-1940-map-p-8-006788","title":"The Last of the Free Seas — Great Lakes shipping — Boris Artzybasheff 1940 map","description":"\u003cp align=\"left\"\u003e'The Last of the Free Seas'\u003c\/p\u003e\u003cp align=\"left\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp align=\"left\"\u003e\u003cem\u003ePublished in Fortune in July 1940, Boris Artzybasheff’s The Last of the Free Seas is a vivid double-page flow map of Great Lakes commerce. The title treats the lakes as vast inland seas whose shipping lanes remained open and commercially “free” while ocean routes were increasingly vulnerable to attack. The map visualizes an average season’s movement of more than 100 million tons across Superior, Michigan, Huron, Erie, Ontario, and their connecting rivers and canals. Broad, colored ribbons show iron ore, coal, grain, and other bulk freight, scaled by volume and sweeping between Duluth, Chicago, Detroit, Cleveland, Buffalo, Toronto, Montreal, and smaller industrial ports. Rail-car ferries, drainage basins, and canal links complete a picture of the lakes as North America’s great internal freight highway in 1940.\u003c\/em\u003e\u003c\/p\u003e","brand":"Antiquemapsandprints.com","offers":[{"title":"Default Title","offer_id":52983563583835,"sku":"P-8-006788","price":115.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/9583\/1643\/files\/P-8-006788a.jpg?v=1778784370","url":"https:\/\/www.antiquemapsandprints.com\/fr\/products\/the-last-of-the-free-seas-great-lakes-shipping-boris-artzybasheff-1940-map-p-8-006788","provider":"Antiquemapsandprints.com","version":"1.0","type":"link"}