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Original Image: https://www.flickr.com/photos/barrigerlibrary/12230303364/in/album-72157640332517193/

There are lots of great images on the Flickr John W. Barriger Collection page, unfortunately many are reversed even though Flickr users have commented as such on the images. Photo above is of NYC R Motors at Croton Harmon, New York. Equipped for both third rail and catenary pickup.