Hi All I’m in an area that’s got some pretty sandy ground and some of the coins especially the copper coins are pretty much unrecognisable and even the slivers are very badly stained with a blackish look to them. So I’m just wondering what seems to work the best to bring them back to life so they resemble what they should look like?, I don’t expect them to look fantastic due to how bad there condition is in now but it’d be great to at least be able to recognise what they are. Any