Supplying the two-cylinder car to be built was Fred S. Duesenberg and his brother August. The car was named for E.R.Mason, a local attorney who supplied the money. Their slogan was “The Fastest and Strongest Two-Cylinder Car in America”.

They sold 1,472 cars in 5 years. The best year was 1910 with more than 400 cars but car production ceased in 1914. E. R. Mason never produced another car but the Duesenberg brothers did.

Mason emblem. (source: Radiator Emblem Collection)
Mason emblem. (source: Radiator Emblem Collection)
1920 Maso ad. (source: Radiator Emblem Collection)
1920 Maso ad. (source: Radiator Emblem Collection)