Date: | 07 30 1952 |
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Description: | Text on reverse reads: "G-1–Ore Boat Leaving Duluth-Superior Harbor, Lift Bridge Raised. Giant lake freighters leave Duluth-Superior Harbor, the world's la... |
Date: | 06 14 1947 |
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Description: | Text on front reads: "Opening of Navigation Season, First Giant Freighters Entering Ship Canal and Duluth-Superior Harbor." On reverse: "The navigation sea... |
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