Do you know if it is a guinea spade (gold) or a guinea spade token (brass)????
http://www.ebay.com/itm/1791-georgivs-III-Metal-Detector-Find-Coin-Unknown-Nice-condition-/321185270628?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWNX%3AIT&nma=true&si=tK1oJnrXj69Y%252BLTmZc10rR5tqS8%253D&orig_cvip=true&rt=nc