Chris Barkan writes:

This is a great photo for the tank-car-o-philes among us. It would be an
excellent candidate for Ted's photo of the month club, particularly if we
could
get Richard H. and others to try and ID the cars. Reporting marks are not
visible but perhaps builder, type and approximate year of construction?
Richard,
do you want to give it a shot, at least for the first track in the center
foreground?

Of the cars that are clear enough in the photo to identify, all are Union
Tank Line - no surprise, considering that UTL's fleet dominated the tank
car business at the time the photo was taken, the Standard Oil monopoly
having only recently been broken up. The smaller cars were 6.5K gal. class
X, most of the larger ones were early class X-3, and in the foreground
there was one 10K gal. four course AC&F Type 21, a design that UTL
purchased in the '20s, in addition to ordering large numbers of X-3s built
to their own design.

Richard H. Hendrickson
Ashland, Oregon 97520