"Silver-Streaking Bert Fibel"
The Silver Streak
Creative Commons Attribution Share AlikeThe Silver Streak - Credit: Sean Lamb

The Silver Streak was a nickname for the Pioneer Zephyr, a diesel train made up of permanently bound together cars, built in 1934. The train's exterior was made primarily of stainless steel, giving it a distinctive image, and it was meant to promote rail travel in the United States. It made use of innovative building techniques to keep its weight down, and set a speed record when it made the journey between Denver, Colorado and Chicago, Illinois in 13 hours, five minutes, traveling at 77 mph. Its nickname stems from this feat.