This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Car rigged with two pistols to measure Bureau motorists reaction time in applying his brakes. National Institute of Standards and Technology contentdm oclc org National Institute of Standards and Technology The images in the Automobile Research Photographic Collection are in the public domain and are not subject to copyright in