Boston & Maine Class J 4-4-2 3200 was built by Baldwin in 1895 for the Concord & Montreal as their class 33. This was the first Atlantic type that offered all the qualities of the design, i.e., firebox behind the drivers, trailing wheels to support the firebox (though not a true trailing truck), and larger drivers. This engine was absorbed by the Boston & Maine as its lone Class J. She had 70" drivers, 19 x 24 inch cylinders, boiler pressure of 170 lbs, and could exert up to 17,885 lbs of tractive effort. This image from my collection was taken at Boston, Mass in August, 1912.
