Royalty free engine on the left photos

6000x3369px

person's left hand, technology, developer, touch, finger, artificial intelligence, think, control, computer science, electrical engineering, computer

Public Domain
4608x3238px

steam locomotive, engine on the left, drive system, blowing wheels, piston rod, phillips, slipway, drive rod, connecting rods, compressed air tank, feed pump

Public Domain
3942x2871px

steam locomotive, führerstand, Steam Locomotive, führerstand, left control, sncf, valves, handles, hand wheels, firebox, schedule, historically

Public Domain
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motorcycle, toys, child, children, children toys, concerns, left, play, boy, vehicle, model

Public Domain