SF-1 Locomotive - City of San Francisco Diesel Engine Illustration #82028 (License: Personal Use)

This precise line-art illustration depicts the SF-1 diesel locomotive, part of the famed City of San Francisco passenger train service operated by the Chicago & North Western Railway and later the Union Pacific. The drawing highlights key design elements including the streamlined cab, three circular side windows, dual air intakes, and undercarriage bogies with traction motors. It serves as both a historical reference and a technical blueprint for modelers and rail historians.

Used on railway history websites, museum digital archives, or enthusiast forums to illustrate vintage locomotive designs; matches user intent for research, modeling, or educational content about mid-20th-century American passenger trains.