im glad peckris isnt here tonight............we would both be in for a ticking off............ coming back to the coin shown at the start of the thread........dipping may improve the coin, or not dependant on your view, as you say it may make it blotchy.....i think that was the term used.......looking out for a more pleasing example may be the better option rather than trying to make the coin something it isnt and maybe reducing its value along the way. tarnishing/toning...........i can see what your saying, maybe the difference is as you say, tarnish is the build up of grime...........im still not sure if i personally like coins dipped or cleaned, maybe for me the crud is good. I totally agree. I don't think that the topic starter coin could be dipped and come out smelling of roses. Its far to ingrained in my opinion and may leave tell tale stains that it's been dipped. Most notably these appear around the legends and deeper parts of the coin.My next question would be though, would you have known i'd dipped the Halfcrown?Did'nt realise, but my coin is 100 years old next year So that does beg a question, when do you/anyone regard a coin as being old........A 100 year old coin in human terms is old, but in the coin collecting world, when do we regard a coin as actually being an old coin?