B&O Q-4 Mikado in Indiana By Angela Cotey | June 3, 2013 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Baltimore & Ohio class Q-4 2-8-2 No. 4479 steps along a manicured right of way with a westbound freight near Walkerton, Ind., in the early 1950s. Linn H. Westcott photo Comments+ You must login to submit a comment