The last business at this service station at Irving and 16th was called "Folk Wisdom". According to City records is was built in 1926. I haven't been able to find what kind of gas station it was originally.
(Edit October 4, 2010 - it was a Mohawk Station. Read Frank Dunnigan's "Streetwise - Irving Insights", and see a photo of the pumps)
I had a lot of fun poking my camera through the fence.
Wonder what kind of flags hung here?
I don't think you will find a mechanic any more:
It is quite "Closed":
I wish I had taken more photos of this wall, but it is all the way in the back. The sign on the left door says "Ladies". It looks like a random wall put up at an angle. I wonder why.