From the state archives description: "The Sikorsky S-42 was one of the earliest of the four-engine clippers used by Pan American in developing its system of global routes. The S-42 carried 32 passengers and had a gross weight of 43,000 pounds. It was used on Latin American, Atlantic and Pacific routes by the pioneer U.S. international airline."

The "Brazilian Clipper" was c/n 4200X and renamed to "Colombia Clipper" years later. Pan American used this aircraft from 1934 to 1946.