The Western Maryland's class H-9 2-8-0s rolled off the Baldwin erecting floor from 1921-1923, at 309,910 pounds being the heaviest Consolidations of this coal-hauling road and among the weightiest ever built. With 27x32-inch cylinders and 61-inch diameter drivers, they sustained 210 p.s.i. of boiler pressure and developed 68,263 pounds of tractive effort, greater than that of many larger locomotives. With an evaporative heating surface of 3463 square feet and a superheating surface of 945 square feet, they boasted nearly 75 square feet of grate area. The 12-wheel tender reflects the heavy road service to which these engines were assigned until retirement in 1953-54. No. 810 of the class posed for the Baldwin builder's photo, acquired from an eBay seller.