Calculations and supporting material for the preliminary analysis of the bumper standard.

Mode of access: Internet.

Material development for training for operators of speed measuring devices. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Double-ram Zun

Metalwork, Chinese, Shang; 1 ft. 5 3/4 in.x 1 ft. 4 9/64 in.x 7 7/8 in.; bronze