Keep the American flag on the seas Join the Navy--Enlist now-your country needs you.

Keep the American flag on the seas Join the Navy--Enlist now-your country needs you. LOC Summary: Poster showing battleships at sea. LOC Notes: Issued by City of Boston Committee on Public Safety. Date Created/Published: Boston : Smith & Porter Press, 1917. World War 1 propaganda poster provided by LOC. Original medium: 1 print (poster) : lithograph, color ; 56 x 36 cm.