Got out to a site that hasn't produced much in the past and today was no exception. Did manage a worn George II and the find of he day was the shoe buckle. A break in the tine but it's still complete and intact! Will be trying another site later this afternoon.
Although buckles are far from rare, intact ones can qualify for a rare find in my books; in twenty years detecting I've only found one, same as yours and still a really nice find!