Tried a big field yesterday that was massive and the bit I did had very few signals. These are the best finds, a buckle approx 13th C, and the other find i've seen described as a Celtic la tene brooch, pin, nail cleaner (take your pic).
I pick nail cleaner, but hard to see for sure I'm off out soon but no virgin ground for me, just land we have done many times but is our only choice right now.