I asked this same question when first in the hobby back in 2012. Doug (black tee) comments 1935-1936 in this thread.
Although the thread drifts off subject some, other Texaco experts chime in with some good info as well.

http://www.oldgas.com/forum/ubbthreads.php?ubb=showflat&Number=339548&page=all


Last edited by Steven C.; Wed Mar 07 2018 03:39 AM.

Steve Coppens
Always interested in Sunoco items!
Really want a Sunoco National pump ad glass!!