| Here is a photo from page 727 in the "Centennial History Of The Pennsylvania Railroad Company: 1846-1946" that was composed by George H. Burgess & Miles C. Kennedy and published in 1949. Photo Caption: "Mountain type, Class M-1 locomotive, 1923." Shown here is PRR engine #4700, an M-1 (4-8-2) "Mountain" built in Juniata in October of 1923, renumbered "6699" in 1933, and retired in July of 1950 after 27 years of service. This is the very first PRR "Mountain" class locomotive. |