View of the 50,000th built Packard Rolls-Royce Merlin XX engine. Sign displayed over engine reads: "Packard's 50,000th war engine. Packard-built Rolls-Royce airplane engine powers Mustang, Mosquito, Warhawk, Lancaster, Hurricane." On back: "Neg. no. 9292 J. Date: Oct 23, 1944. Main guide: RR. Comment: Packard-built Rolls-Royce Merlin airplane engine, the 50,000th built, October 1944."