I, too, was curious about these when i saw them last year:
see weblog http://www.themodernantiquarian.com/user/1761/weblog/10/18254 (scroll down a bit to the photo) but decided against posting it as a site because I couldn't find enough proof as to their ancientness....

Which brings me to a point that has long bothered me: where do we draw the line?

Earlier this week I posted a photo of the Sutton Hoo burial mask, which is WAAAY out of the time scale of this website.

Where DO we draw the line? How much proof of ancientness is necessary? Do we just rely on each other to discuss 'dodgy' sites on a case-by-case basis?
J
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