I also have station panels that have "washing" and "lubrication" on them. They're all from the same Sinclair station. If anyone knows the era they were put into use I'd like to know.
I agree the 6' triple check is the more common of the three versions. I've upgraded the 6' since that picture was taken. (Thanks Wes and Mark).
As far as I know that's the only trapezoid triple check sign. I'd be interested in upgrading if a better one turns up.
Like Wes said, the triple check logo was experimental. It was used in a few markets from 1956 through '59. I've seen a picture of a Sinclair station with triple check signage in use as late as 1961.
There are two versions of triple check globes as well. They're even tougher to find than the triple check signs.
Edited by Lastgas15 (Sun Feb 07 2016 10:55 PM)
Wanted: Gas pump globes:Sinclair & affiliates, IL companies. Ripple bodies. Anything Sinclair, Stoll, Pierce, 4 Bros.http://www.lastgas15.com/