The unused Dura-ace one I'll flog you for a tenner plus postage if I can find the bugger...
If you find that would be awesome, as much as I should be willing to spend $60-$75 dollars on a cog for the bike I ride the most, it does niggle a bit.
The good news is I found it, the bad news is it's a 13, sorry!
@Khornight2 started
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The unused Dura-ace one I'll flog you for a tenner plus postage if I can find the bugger...