I must say that even LPU HQ were curious how did I get it, lol. I don't know who exactly... but someone (maybe Adam) said that it was one of the variants for LPU8 Plaque, but they voted against it. Probably sent it by mistake, or something...
Could be that I was one of the first to join LPU8, I did it when the site wasn't fully redesigned yet.
Anyway, LPU HQ even offered me an exchange for normal Plaque, which of course I refused to do, lol
They didn't want it to end up on eBay, which probably won't happen in any foreseeable future.