Work was called of today so I took my new gp extreme for its 4th time out in hope of some yellow stuff only to find on my first dig at the entrance to a mine shaft was a silver coin , as I cleaned it carefully the date started to appear .....1817 ...., OMG a silver shilling nearly 200 years old , I've be in demolition for over 15 years and have found some old and rare coins but after today nothing comes close to this find . Sorry I can't seem to post a pic ?