Streamlined COE fuel tanker of unknown make built for Gilmore, 1935, either by

Good looking rolling advertisement, some think it was a White designed by Count de Sakhnovsky, and others think it was designed by Wellington Everett Miller

the above 2 photos are from Steve, and he looked up this tanker, and these photos were taken during the Yosemite Economy runs, 1936-38

Gilmore's 1934 traveling neon sign fuel tanker (mack chassis)

found on http://dieselpunk.livejournal.com/471611.html#cutid1

I finally stumbled across some new photos of the 1937 REO fuel tanker

found on http://www.cardesign.ru/forum/diskussii/obschenie/1352

the only other image I ever came across was in 2009: http://justacarguy.blogspot.com/2009/02/there-may-never-be-day-in-future-when.html and since all 3 images show the REO with the same side marking advertising Super Plume Ethyl, I suppose it's the only one vehicle in these 3 photos