Pictured at Columbus, Ohio in 1950 is Chesapeake & Ohio 2-6-6-2 Mallet compound No. 1492; the postcard, acquired in an antique shop, attributes the view to Dick Lind and William E. Warden. No. 1492 belonged to the C&O's class H-6, delivered by the American Locomotive Company between 1020 and 1923. They carried 210 p.s.i. of boiler pressure and rolled on drivers 56¼ inches in diameter. The rear high-pressure cylinders measured 22 inches in diameter and 32 inches in stroke, while the front low-pressure cylinders had a 35-inch diameter. These engines weighed 449,000 pounds and mustered 77,900 pounds of tractive effort. They had a grate area of 73 square feet, an evaporative heating surface of 4900 square feet, and a superheating surface of 975 square feet. The C&O was a heavy user of these 2-6-6-2 compounds on its coal-mine branch lines, buying new locomotives of the same basic H-6 design as late as 1949; the ten members of the H-6 class delivered that year by Baldwin Locomotive Works were that builder's last steam order for service in North America. All the H-6 locomotives were retired by the end of 1957, but two from the 1949 group survive. One of them, No. 1309, is being restored to operating condition by the Western Maryland Scenic Railroad.