Airstream R.V. 

Airstream is a brand of luxury travel trailers and motorhomes manufactured in Jackson Center, Ohio, USA. The company is the oldest in the industry. Airstream trailers are easily recognized by the distinctive rounded shape of their aluminum bodies. This shape dates back to the 1930s and is based on designs created by William Hawley Bowlus. Bowlus was also the chief designer of Charles Lindbergh's aircraft, the ‘Spirit of St. Louis’.
(source: wikipedia.org/wiki/Airstream

Image top: Airstream R.V.  bas-relief detail.
Video: ‘Historical Airstream: Building Dreams is our Business’