Piles of bagged compound ingredients. Tire ingredients which are drawn from this reserve pile for each new set of "batches"… https://www.rawpixel.com/image/12308253/image-background-person-factoryFree Image from public domain licenseLineup of workmen at union headquarters, San Diego, California, after the first batch of men are dispatched in the morning.… https://www.rawpixel.com/image/12149577/image-face-people-artFree Image from public domain licenseStreaking into the mixture, and forming the marbleized pattern, the powdered components at first can be detected in the… https://www.rawpixel.com/image/12308251/image-person-pattern-hospitalFree Image from public domain licenseRemoving batch of cane from truck at sugar mill near New Iberia, Louisiana by Russell Lee https://www.rawpixel.com/image/12167913/image-plant-person-artFree Image from public domain license The Filling Station small-batch beer emporium in the trendy Eastside neighborhood of Nashville, the… https://www.rawpixel.com/image/8042571/photo-image-music-public-domain-cityFree Image from public domain license