View of a Packard airplane engine, Model 2, displayed on a stand. Printed on front: "Packard airplane engine, Model 2. " Item #: bh024801 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
View of water pumps for Packard airplane engines and Liberty airplane engines. Printed on front: "Packard, Liberty. " Item #: bh024821 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
View of propeller shafts for Packard airplane engines and Liberty airplane engines. Printed on front: "Packard, Liberty. " Item #: bh024822 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
Comparison view of a Packard airplane engine and a Liberty Model B airplane engine, displayed on stands. Printed on front: "Packard, Liberty Model B. " Item #: bh024809 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
Comparison view of a Packard airplane engine and a Liberty Model A airplane engine, displayed on stands. Printed on front: "Packard, Liberty Model A. " Item #: bh024810 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
View of a Packard airplane engine and a Liberty Model B airplane engine, displayed on stands. Printed on front: "Packard, Liberty Model B. " Item #: bh024811 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
Comparison view of a Packard airplane engine and a Liberty Model A airplane engine, displayed on stands. Printed on front: "Packard, Liberty Model A. " Item #: bh024808 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
View of camshafts, valve tappets and valve rockers from Packard airplane engines and Liberty airplane engines. Printed on front: "Packard, Liberty. " Item #: bh024817 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
View of a Packard airplane engine and a Liberty airplane engine, displayed on stands. Printed on front: "Packard, Liberty. " Item #: bh024813 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.
View of a Packard airplane engine and a Liberty airplane engine, displayed on stands. Printed on front: "Packard, Liberty. " Item #: bh024814 Photo courtesy of the Detroit Public Library, National Automotive History Collection and used with permission.