Bannister: The U.S. Navy Needs Men c 1917.

Raymond Bannister The U.S. Navy Needs Men c.1917. Battlewagon’s searchlight seen sweeping rough seas for German U-boats. Partially concealed by a deep trough between the ocean’s waves, the bright beam reveals the periscope of surfaced U-boat. Before the invention of sonar, finding subs was almost impossible. Beautiful striking design and super rare. We have only seen this poster once over 25 years ago in 45 years of business. 40×30 near mint,conservation backed.