WE are staying at a beach that has been very popular over the years and I was detecting along the low water mark without much success,AS I moved closer up toward the high tide mark I started to get a few results,as I carried on it became apparent that there was an area about 2 metres wide that stretched along the beach for about 100 metres,this area had been washed out with resent wave action.I managed a good collection of coins the oldest being the 1872 threepence with the hole in it that must have been someones charm at some stage I found all the silver rings pictured some are way beyond repair but a few will clean alright.The two gold rings (9kt) came within an hour of each other,when I got back home and after cleaning the large ring,it simply slipped out of my hand and landed on the the lino floor then broke into 4 pieces,I couldn't believe it,this is the 3rd ring that has broken on me as I cleaned them up.I spoke to a jeweler abou this and his explained that when a lower carat ring is exposed the the salt and elements for a long period a chemical reaction can take place that makes the fragile.....ahh well I guess its good for scrap