Is there some marking on either the fixed or adjustable cup, i.e. 1 x 24 or similiar?
if so we can let you know what you've got.
Off hand I'd say it's probably an Italian thread, of course I could be completely wrong,
wouldn't be the first time.
Marty
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Sono pił lento di quel che sembra.
Odio la gente, tutti.
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