Does anyone know what this metal detector could be found?

I have no idea what is actually found in that there is a ford part of the old A1 road (a Roman road in the United Kingdom). I have no idea what it is, has a bull or a deer or other animal with horns on it. This was found in Cambridgeshire in England! here are the photos. http://img188.yfrog.com/i/dsc00014hai.jpg/

Belt buckle? bad photo. Try a museum.

Metal detector finds Exeter 2010 using Garrett Ace 250 (HQ) (HD)