Please Help Me For Clean Coin's

It's actually rather normal to clean ancient coins. If you didn't, how else would you know what was under the hundreds of years of dirt?

That being said, I don't divulge my "secret" ancient coin cleaning formula, but there are others on here with very good methods that I'm sure they will share with you.

Good luck!

You clearly don't understand what I am telling you -- one CAN clean ancient coins. It doesn't hurt their values unless you absolutely massacre them.

You buy ancient coins in two kinds, kinds that need cleaning, and kinds the don't. The coins that don't, have already been cleaned by someone before you (unless it is a gold coin which never needs to be cleaned). The kinds that do, well, it's your job to do so.

For example, I recently cleaned a semi-rare coin of the Roman Emperor Severus II. It started out looking like an unrecognizable clump of dirt, and turned into a beautiful AE Radiate. I clearly wouldn't have known that unless I had cleaned it, and it now has more value.

EDIT: One can hurt an ancient coin with lack of knowledge and/or particularly brutal methods of cleaning, but it is absolutely not off limits, as wetglaswegian seems to think so.

Cleaning ancient coins is an acceptable practice as Sir Ferrari states. The process I use is to soak the coins in Olive Oil for several weeks, than wash the oil off with mild soap an water, than I ultrasound the coins, and after that I than soak them in distiller water and finally very, very carefully use dental tools to remove any hard deposits that are left. This is a process that has work well for me for many years.

There, echizento just gave you some sound and knowledgeable advice Yves.

wetglaswegian: All ancient coins that survive today were in the ground once - there's simply no such thing as an ancient coin that's been sitting around in collections for several millenia, there are no collections that old. So all ancient coins, once dug up, need cleaning. Granted, some don't need much cleaning (gold coins, for instance, just need a quick dust-off and a wash in water) but some coins will need quite extensive treatment. It also needs considerable care and practice, as the oxide layer on an ancient copper coin can be quite thick, and it's sometimes difficult to tell where the dirt stops and the patina begins. Uncleaned coins are often sold in bulk, for just a few dollars each. It's a bit of a gamble, as you never know whether the coin underneath the crust is any good or not.

yves: before we discuss cleaning your coins any further, we should clarify: your coins are currently in an uncleaned, fresh-from-the-ground state, with soil and stuff still stuck to them, correct? If they've already been cleaned, they won't need any further cleaning. Some pictures of your coins in their current state might help, so we can see how much (if any) cleaning is needed.

Here are some general tips for uncleaned ancients cleaning:

- start with the weak stuff, and work your way up to stronger cleaners only if the coins resist the weaker treatments. Deionozed water and olive oil are "weak". Peroxide and ammonia (on silver) are "medium". Sodium hydroxide, ammonia (on copper) and electrolysis are "strong".

- be patient. A lack of patience is the main reason I've never tried cleaning ancients myself; I buy all of mine already cleaned. Many great coins have been ruined by somebody deciding they can't wait for the proper treatment course to finish, and trying to speed things up. An overcleaned coin looks even worse than an uncleaned one, and of course once it's been cleaned badly, it can't be "discleaned" again.

- don't get discouraged if it "doesn't work". Some coins will require lots of careful work to reveal themselves; other coins are corroded lumps of metal that will never clean up properly no matter what anybody does to them. It''s only after considerable effort goes into a coin that you can guess which is which. Finding slug after slug can be discouraging. It helps if you buy your uncleaneds off of a reliable source, rather than any old seller on ebay.

Yves, this link along with tons of patience will help you. Don't be in a hurry. I have some that have been soaking in olive oil for over a year.

http://www.celatorsart.com/cleaning3.html

NO! Do not use easy off on them. It will take some time to clean them if they are heavily encrusted. If you see detail already then a short soak of a week or so in Olive Oil may be all you need. Oven cleaner will destroy them.