They Kept the Sea Lanes Open Liberty Loan Poster, Circa 1918

This is a WW I patriotic poster that reads, in full, "They kept the sea lanes open / Invest in the Victory Liberty Loan." It was created by LA Shafer and published in 1918.

This war effort poster is a symbol of the Navy's efforts to keep the oceans and sea lanes open, secure them for American troops and transportation ships responsible for carrying supplies to Europe during World War I. The German U-boats struck terror in all the convoys, but the propaganda campaigns would be a turnaround in the War by pulling in more money to the Army and Navy. They were printed for the fifth and final Liberty loans, known as the Victory Liberty Loan.

The poster shows rough seas with three vessels depicted. A must for everyone that likes marine art or collectors of World War I patriotic posters.

Framed size: 33" 42.75" 2.25" D

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