The area where I live (Southern UK) is dotted with the sites of Iron Age, Roman and Saxon settlements, so I tend to keep my eyes peeled while walking footpaths. Yesterday evening I spotted an interesting bit of iron poking out of the ground, and levering it out, discovered the object pictured here:
http://img831.imageshack.us/gal.php?g=tracklink02.jpg
I wonder, could this be a track link from a Universal Carrier? The size seems right (width: 9.5 inches).