Duro was a Detroit based tank car operation starting in the mid 1920's
Tulsa also a Detroit based discounter that was founded when one of the Sucher Brothers left Speedway & founded Tulsa in the mid 1950's.
Shortly after that Tulsa acquired the Duro stations & re branded them Tulsa

Tulsa & Duro stampbooks.jpgDuro catalog.jpgDuro Catalog tank car storage.jpg