Longitudinal-course STC car, one of 79 ordered by Shell Oil of California in 1923. The car to the left is a pre-1917 GATC tank, probably another Shell car judging by what is visible of the pressure test data.

David Thompson

Here's a link to a partial photo of SCCX 682 - a tank car at NW St. Helens and Doane Aves in Portland, OR in 1937. The photo can be expanded.

https://vintageportland.files.wordpress.com/2020/10/public-works-administration-archival-public-works-administrator-photographs-a2005-001.773-nw-doane-ave-area-and-st-helens-rd-looking-northeast-1.jpg

Todd Sullivan.