(CNN) - Five pre-war cars and a travel trailer, stored more than 40 years in a barn, will go up for auction at the Indianapolis Motor Speedway in June.

Antonio Brunet, the chairman and founder of Motostalgia Auctions, says the collection includes:

• 1932 Cadillac 370B V-12 Victoria Convertible
• 1933 Cadillac Model 370C V-12 Town Coupe
• 1938 Cadillac Series 90 V-16 Fleetwood Limousine
• 1923 Milburn Electric Model 27L
• 1908 REO Model G Boattail Roadster/Sedan Tonneau
• 1937 Kozy Coach Travel Trailer

Brunet's business is just a few miles from the barn where they were stored for 40 years, but he didn't know they existed until two years ago.

The owner moved from Wisconsin to Texas in 1972-73.

“He had some amazing vehicles that he put away in his new barn, always with the intention of getting the time and money to fix them,” Brunet said. “But as it often goes, he never found that time.”