https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12307503Edit ImageSaveSaveEditCropCustom TextMake it Yours.Remix, add effects & personalize with your own textCustomizeOr start from these designsProduction. Aircraft engines. That little instrument Verna Lampy is welding looks and sounds a lot like the drill your third bicuspid may be familiar with. It's used in a huge Midwest aircraft plant, however, to etch serial and inspection numbers on airplane motor parts, making a permanent record to facilitate assembly and production count. Melrose Park, Buick plant. Sourced from the Library of Congress.MoreProduction. Aircraft engines. That little instrument Verna Lampy is welding looks and sounds a lot like the drill your third bicuspid may be familiar with. It's used in a huge Midwest aircraft plant, however, to etch serial and inspection numbers on airplane motor parts, making a permanent record to facilitate assembly and production count. Melrose Park, Buick plant. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 889 px | 300 dpiLarge JPEG 3500 x 2592 px | 300 dpiBest Quality JPEG 8685 x 6431 px | 300 dpiTIFF 8685 x 6431 px | 300 dpi | 106.55 MBFree Download