Rare WWII RA Webster Hardness Tester Army Air Force USAAF Aircraft Sheet Metal
The product is a rare WWII RA Webster Hardness Tester used by the Army Air Force (USAAF) to inspect aircraft sheet metal. Manufactured by Webster Instruments in the United States, this hardness tester is a valuable collectible for those interested in military history and metalworking inspection tools. This item provides a unique and historical insight into the quality control measures taken during World War II in the aviation industry.