As the recreational trailer market took off after World War II, many companies chose to abandon their previous endeavors to jump on the camper bandwagon..
As the recreational trailer industry took off after World War II, wealthy industrialist J. Paul Getty abandoned aircraft manufacturing to build motorhomes. Spartan Aircraft became the Spartan Trailer Company, and from Getty's factory in Tulsa, Oklahoma, rolled out the Royal Mansion in 1948.
Born in the 1920s, the recreational trailer industry really took off after World War II. With Americans looking to travel more, numerous companies jumped on the trailer bandwagon. The market expanded rapidly and, by the 1950s, the range of towable products included anything from small campers to large mobile homes. The Spartan Royal Mansion was born in that era, and it's among the rarest vintage trailers you can buy.