Barnum Brown
The company created the first full sized dinosaur sculptures for the 1964 New York World's Fair in the "Dinoland" area, which was sponsored by the Sinclair Oil Corporation. Jonas consulted with noted paleontologists Barnum Brown, Edwin H. Colbert and John Ostrom in order to create sculptures that were as accurate as possible. After the Fair closed, the dinosaur models toured the country on special flatbed trailers as part of a company advertising campaign. Many of the statues are now on display at various museums and parks