Allegheny helper By Angela Cotey | August 24, 2022 | 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 Chesapeake & Ohio 2-6-6-6 No. 1610, one of the road’s 60 giant Allegheny types, works as a pusher on a coal train. Classic Trains coll.