View of the 900th V-12 Liberty aircraft engine produced by the Packard Motor Company. Sign on motor reads: "I am 900 for Oct. shipper, don't stop me or any ahead of me, because 'we are after the Kaiser.' Champion Liberty motor builders." On back: "Date: 10-25-18. Drawer no. O. Guide title: Aircraft engine. Subject: Completion of the 900th Liberty engine." Stamped on back: "This print not to be reproduced without the authority of the Advertising Dept., Packard Motor Car Company, Detroit, Michigan." Handwritten on back: "900th V-12 Liberty engine to produced at Packard during October 1918. Packard Motor Car Co. aircraft engines."