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(1 - 4 of 4)
na051723
Alvan Macauley posing with Packard 24 cylinder X aircraft motor
na051724
900th V-12 Liberty aircraft engine
na051722
Alvan Macauley presenting scroll to Frank M. Couzens
na051721
Alvan Macauley and group of men watching dynamometer test of Packard 905 engine