Originally Posted by
Charles Wahl
This is what I meant by taking a photo to determine the thread direction.
Andy_K , I presume we're looking at a left-hand (French or Italian) threaded fixed cup, since it appears to unscrew clockwise from the exterior?
I somehow missed your mention of taking a picture, but I see it now.
The one in my picture is ISO (“righty loosey”). It was on a Japanese-built Gitane.