For your Just Too Cool file from the History Blog:
A metal detector enthusiast has discovered a unique silver penny issued by William the Conqueror in a field north of Gloucester. Maureen Jones and two other women from the Taynton Metal Detecting Club were exploring the open field last November when Ms. Jones’ detector went off. She recognized that it was a hammered silver coin, but didn’t realize that was the face of the Norman bastard himself staring back at her from the obverse.
It is a William I silver penny minted between 1077 and 1080 in Gloucester.
How cool would it be to find something like that?
I’d settle for finding, say, the second book of Aristotle’s Poetics or the rest of Livy’s Ab Urbe condita.