World War I – Air Service Posters World War I Leave a comment 1,226 Views Join the the Air Service--"Give 'er the gun" / Warren Keith.Join the the Air Service--"Give 'er the gun" / Warren Keith.Join the Air Service--Learn-Earn / W.Z. ; Forbes, Boston.Join the Air Service--Learn-Earn / W.Z. ; Forbes, Boston.Join the air service and serve in France--Do it now / J. Paul Verrees.Join the air service and serve in France--Do it now / J. Paul Verrees.For action enlist in the Air Service / Otho Cushing, Capt. A.S.U.S.A.For action enlist in the Air Service / Otho Cushing, Capt. A.S.U.S.A.Join the Army Air Service, be an American eagle / Charles Livingston BullJoin the Army Air Service, be an American eagle / Charles Livingston Bull ; Alpha Litho. Co., Inc., N.Y.Mechanical training--Enlist in the Air ServiceMechanical training--Enlist in the Air Service / Otho Cushing, Capt. A.S., U.S.A. Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to share on Pinterest (Opens in new window) Pinterest Click to share on Reddit (Opens in new window) Reddit Click to email a link to a friend (Opens in new window) Email
