Hi Silver fox
I hear what you say but from my own experience which also spans many, many years I learned NOT to try to clean them other than using just an old toothbrush and warm water UNLESS it isn't going to be of any value at all
Don't get me wrong, in my early days I too ruined coins and tried everything from electrolysis to bleach and a lot more
but I would never try it on any of my hammered or a Roman coins for fear that I ruined them.
I do like the photo of your Saxon Sceat which you have shown as a before and after photo but I still would not recommend doing this to such old and rare coins
You say that you have sold coins which have gone up in value after cleaning them ?? but I'm wondering how you have previously sold them because if you have sold them on eBay then fair enough because there are a lot of inexperienced buyers on there and I would NEVER buy such a coin on eBay anyway in fact I have never ever bought coins on eBay, I just like you have found multiple hammered coins and Roman silver and bronze units over the years on my own, I would be surprised if some of the more professional coin collectors out there like like Mike Vosper and his partner Vivienne would pay more for a coin cleaned by someone even if they did have 40 years experience or not >>
but what I was going to say is that in the well known book called
"Coins of England & the United Kingdom" by Spink and in every edition no matter which year you buy it clearly states somewhere near the beginning of the book in the section about cleaning coins and I quote.......
Cleaning Coins"Speaking generally, do not clean coins. More coins are ruined by injudicious cleaning than through any other cause, and a badly cleaned coin looses much of its value."Quote taken from the aforementioned book Its your choice of course if you want to do this I suppose
.
Glen
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