The Allen was a short-lived United States automobile manufactured in Philadelphia, Pennsylvania from 1913 to 1914. The early models featured a two-cylinder engine, while later ones had a water-cooled four-cylinder version. These models also had a friction transmission and shaft drive, a wheelbase, and a track, costing $450. Confusingly, another American company also offered a car called the Allen, also in 1913. References ^ G. Marshall Naul, "Allen (i)”, in G.N. Georgano, ed., The Complete Encyclopedia of Motorcars 1885-1968 (New York: E.P. Dutton and Co., 1974), pp. 36. Brass Era vehicles Defunct motor vehicle manufacturers of the United States Motor vehicle manufacturers based in Pennsylvania