Public domain
Holabird ordnance depot, Baltimore, Maryland. An officer checking the air pressure of the giant tires on LeTourneau road scrapers which are being sent overseas. Pressure must be ten pounds above normal load to keep tires in best condition during the journey
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineHolabird ordnance depot, Baltimore, Maryland. An officer checking the air pressure of the giant tires on LeTourneau road scrapers which are being sent overseas. Pressure must be ten pounds above norma. 1943-01-01. Rosener, Ann. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.