No. 721 of the Soo Line (Minneapolis, St. Paul & Sault Ste. Marie) represents its H-1 class of Pacific type locomotives. They had 20x26-inch cylinders, 69-inch drivers, and a boiler pressure of 200 p.s.i. These small engines weighed 202,000 pounds and put forth a modest 25,620 pounds of tractive effort. They were erected by American Locomotive Company's Schenectady Works in 1904-1907. No. 721, seen in this anonymous photo I acquired in an antique shop, was scrapped at least by 1947, as she is no longer listed in a roster published that year.