Public domain
Conversion. Pianos to airplane motors. From piano keys to parts for trainer planes. Lorraine Avezzano, pictured at work in a Chicago piano factory prior to its conversion to war production. She uses the same boring machine today to process parts for Uncle Sam's trainer planes. Gulbransen Company
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineConversion. Pianos to airplane motors. From piano keys to parts for trainer planes. Lorraine Avezzano, pictured at work in a Chicago piano factory prior to its conversion to war production. She uses t. 1942-01-01. Rosener, Ann, United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.