A woman poses next to one of the first Bowlus aluminum trailers, which were built in the 1930s by an aerospace engineer in Los Angeles and one early use of them was to transport airplane crews. Bowlus/Handout via REUTERS
A woman poses next to one of the first Bowlus aluminum trailers, which were built in the 1930s by an aerospace engineer in Los Angeles and one early use of them was to transport airplane crews. Bowlus/Handout via REUTERS