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A store of crossbow bolts, shafts and heads

A store of crossbow bolts, shafts and heads.jpg ThumbnailsPrinciple of the helicopter, drawing by Leonardo da VinciThumbnailsPrinciple of the helicopter, drawing by Leonardo da VinciThumbnailsPrinciple of the helicopter, drawing by Leonardo da VinciThumbnailsPrinciple of the helicopter, drawing by Leonardo da VinciThumbnailsPrinciple of the helicopter, drawing by Leonardo da VinciThumbnailsPrinciple of the helicopter, drawing by Leonardo da Vinci

The crossbowman is aiming at a target to the left of the picture.
From a catalogue of the Arsenal of the Emperor Maximilian I. (6. 1459, d. 1519).