Gary Thompson scanned this builder's photo of Duluth & Iron Range Mikado No. 311 from a magazine article. Erected by Baldwin Locomotive Works in 1923, it was the last locomotive purchased by the Duluth & Iron Range before that line was combined with the Duluth, Missabe & Northern to form the DM&IR. These engines of the DM&IR's N3 class rolled on 58-inch drivers powered by a boiler pressure of 200 p.s.i. and 27x30-inch cylinders. They weighed 338,320 pounds and developed 64,000 pounds of tractive effort. No. 311 became No. 1311 on the DM&IR roster.