I missed the middle of this thread with the picture request. I happened to take some tonight as I was emailing Fagor. My unit was made in 2/1993 according to the date on the bottom.
There are two settings, pushed on all the way to build pressure, and pulled up to the groove to relieve pressure without taking all the way off.
Prehaps the other side is adjustable? I believe that is the safety release though. It has four evenly spaced holes.
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