Lot 32 of an Auction of rare books being offered by PBA Galleries is being described as the 1516-17 edition from the editio princeps of the Rabbinic Bible - the Mikraot Gedolot - printed by Daniel Bomberg. A close look at the photo will show that this is actually the later and much less valuable 1568 edition, printed in שכ"ח.
In all likelihood, this is the work of an unscrupulous dealer, who purposely offered this edition through a non-Judaica specializing Auction House, and is hoping for an easy prey, who will rely solely on the description to make his purchase. I find it most likely that the auction house was describing based on the information supplied to them by the consignor, rather than deliberately be misleading.
Hopefully, if we point out enough such items, we will discourage crooks from attempting to go up this route again.
UPDATE 2/5/14: PBA GALLERIES have withdrawn the lot immediately after they were notified. Thank you.
Hat-tip: Yosef Goldman