Baltimore & Ohio RR No. 25 Baltimore, MD, United States Photo Copyright © Mike Castellow   Click to Enlarge Wheels: 4-4-0 Builder: Mason Machine Works Build Date: 08/1856 Construction No.: 46 Empty Weight: 56,000 Weight on Drivers: 40,500 Driver Diameter: 58 Tractive Effort: 6,225 Boiler Pressure: 75 Cylinders: 16x22 Fuel: Coal Gauge: Standard Location: B&O RR Museum Status: Operational Views: 2835

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