I bought such a case as well, back in the days. Got it from UK's Oakley sales director himself. The case was full with a variety of different brands of sunnies. I was told he used it to show the HDO-effect with the laser. All other brands failed that test. There was a Mars and a Zero in that case.
And it was awesome to hear his stories.
Later I got another, brand new rep case from Italy. It was found - forgotten in a storage - unused. Right beside is the rep case from the UK. Nice to have one in mint condition and one full of stories.