I bought a pair of OO Es (silver/blue iridium) in 2002 and had Rx lenses put in them. Eventually one of the stems snapped just in front of the 'decorative' tube. I picked up these titanium frames in 2007 (11-558 or -559 I think, different sizes) off Ebay and swapped in my lenses.
Since these were an Ebay purchase, I was never sure if this particular pair was authentic. They came with the box and all the accoutrements and the lenses fit exactly as they should (and still look great 10years later), so I'm satisfied with them either way.
Thought I'd post them up since the Rx Titanium hasn't shown up in this thread yet.
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I'm pretty sure they're 'kosher'.