..Indeed, that 'Rings' one really-is a rare-one.. I've only seen one other, and (of course..) we've got it in our archives... and.. it's guarded by laser fencing..
Congrats on the find... ..But, I'm gonna dare to venture that, by the end of this year?... That seller is gonna be reeeal-sorry he sold those so-cheap.. We'll see..
cheers..
j