Locomotive photograph, Davenport Locomotive Works Engine #3.Davenport Locomotive Works, of Davenport, Iowa, USA built locomotives from 1902 until 1956. The company acquired the locomotive business of H. K. Porter, Inc in 1950 and from then on produced Porter designs as well as its own. - h. 18" x w. 22" Locomotive photograph, Davenport Locomotive Works Engine #3.Davenport Locomotive Works, of Davenport, Iowa, USA built locomotives from 1902 until 1956. The company acquired the locomotive business of H. K. Porter, Inc in 1950 and from then on produced Porter designs as well as its own. - h. 18" x w. 22"