Bangor & Aroostook 4-8-2 No. 102 poses at Northern Maine Junction, Maine on April 19, 1941 in a photo by D. Foley purchased via eBay. The BAR's small Mountain types of class M might be considered Mikados having a pilot truck augmented with an extra axle, because some of their features were more typical of a 2-8-2 — their low 62-inch drivers, with the main rod connecting to the third pair of drivers instead of the second. They weighed 317,490 pounds and developed 49,972 pounds of tractive effort, having cylinder dimensions of 22½x30 inches and a boiler pressure of 240 p.s.i. They had 3583 square feet of evaporative heating surface and 932 square feet of superheating surface, with a grate area of about 65½ square feet. This group of ten booster-equipped 4-8-2s came from the American Locomotive Company beginning in 1929, with the last example being delivered in 1945. Still in need of power, that same year the BAR bought five 4-8-2s from the dieselizing New York, Ontario & Western, which it classed as M-1; the last of these was retired in 1949, while some of the BAR's original class M Mountains like No. 102 survived till 1953.