Unlike many members of the NYC System's large H-5 class, Mikado No. 1425 was not rebuilt from a class G-5 2-8-0 but came new from Lima Locomotive Works in 1916 as No. 3980, being renumbered to 1480 in 1936. In 1940 she was transferred to the Boston & Albany as No. 1225. With dieselization of the B&A she was returned to the NYC roster in 1951 and assumed her final number. Her career there was brief, however, as she was sold for scrap the following year. Specifications for members of class H-5t were virtually identical to those of the rebuilt H-5p class, shown for No. 1351, except that the B&A's group weighed 266,000 pounds. The Delta trailing truck suggests that No. 1425 may have had a booster adding 9900 pounds of tractive effort. William D. Volkmer, by way of Wayne Koch, supplied this image of No. 1425 taken at Selkirk, New York probably soon after the locomotive's renumbering.