There is another view of the same scene, but it doesn't show the tank cars as well both are probably posed, but neat photos.

http://imagescn.techno-science.ca/people/index_choice.cfm?id=129&photoid=-1011884325

or here is the caption and image number: Repairing oil tank cars on the line on the Central Vermont Railway
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Image No.: CN005405 Repairing oil tank cars on the line on the Central Vermont Railway

Bob Witt