World War I – Air Service Posters World War I Leave a comment 574 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:TwitterFacebookPinterestRedditEmail
