Aeronautical Engineering September 25, 1918 ^Supplement to The Aeroplane) … WAR plugs for aero and super- efficient racing engines. DURING OVER ONE MILLION the K.L.G. PLUGS WAR have been supplied to the AIR SERVICES. KINDLY MENTION " THE AEROPLANE " WHEN CORRESPONDING WITH ADVERTISERS. 1
Aeronautics -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.