Posted: 17/01/2014 at 23:18
Too small, Birdy - Gg says it is only 5cm x 3.5cm. It looks purely decorative to me with no obvious fixings other than what could be a broken soldered joint at the lower left on the back. I think it's likely a decorative buckle from a shoe or somesuch but I do think it is probably quite old and has been protected from corrosion by the coating which may be real silver.
Edit: I see you've since noticed the size Good call with the tea strainer handle, or possibly the handle from a tea measuring spoon?