Connecticut Southern's train CSO-1 has become a reliable afternoon visitor on the Springfield Line these days, coming southbound through the southern part of its route to New Haven after the passage of the northbound Amtrak "Vermonter." I was lucky this day to catch their only unit in full CSO paint on the point. With the inclusion of Connecticut's "Charter Oak" in the logo, this is the best rendition, in my opinion, of the G&W paint schemes.
