Interesting find Cofty. Did you watch the comedy series, The Detectorists? It was really, really well done - very bitter sweet with a great cast. There have been two series. If you've not seen them then I would recommend checking them out.
Latest Metal Detecting Find
They say there is a lot of gold to be found in and/or around the Queen Isabella Causeway here in South Texas. But it is also known you can not keep what you found. Not worth the time.
My wife loves the metal detector I gave her for her B-day. We've only found pennies and beer can tabs. The biggest find so far, believe it or not, was a small bbq grill on buried on the beach (About 10 in in diameter)