This might be something I was involved with early this year. I'm not being coy, I really don't know. But if you click to enlarge this pic, you'll seen some intriguing images here. There's even a photo I've never seen before. So this suggests it's something special. And if it's the one of I'm thinking of, then it definitely is!
How's that for a teaser on top of a teaser?
Thanks to Mike Bent for the tip.