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Replies: 27 / Views: 5,698 |
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Pillar of the Community
United States
1788 Posts |
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Moderator
 United States
23731 Posts |
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Pillar of the Community
 United States
1788 Posts |
Thanks! Looks like Gringotts is a good cleaner.
As for the book? Opinions on it?
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Moderator
 United States
23731 Posts |
IMO the book has the most current information on Roman and Byzantine coins.
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Pillar of the Community
 United States
1788 Posts |
When I try to loosen the dirt under water, I use regular tap water? Sorry for all the questions 
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Rest in Peace
United States
4078 Posts |
Thanks echizento, for posting that web site. Ploopy, great question. Show us your results
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Pillar of the Community
 United States
1788 Posts |
I will!
There's only one coin where I can make out detail on both sides, want me to get a picture?
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Pillar of the Community
United Kingdom
3626 Posts |
Water: You want distilled, de-ionised or de-mineralised water, not tap water. The idea is that the coins are soaked for a few hours, days or months. The minerals within the crud, leach into the water, making it easier to clean. Depending where the coin has been for the last 1700 years or so, different environments will result in different types of crud. Some is easier to remove than others.
You don't want to remove the patina from the coin. This is the layer between the crud and the metal. You really don't want to see bare metal.
Olive oil is preferred by some people. It will darken the patina over time. If I were you, I would stick to DW until you have a bit of experience.
Post some pictures of the coins you intend to clean and we can advise further.
Welcome to the dark side :)
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Pillar of the Community
 United States
1788 Posts |
I'm gonna try the Gringotts solvent, as I don't have DW or non-virgin olive oil.
I'll get pics.
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Rest in Peace
United States
233 Posts |
From painful experience: Experiment first! More than once!
Old machine shop rule: If you are really in a hurry, take your time.
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Pillar of the Community
 United States
1788 Posts |
Edited by Ploopy 08/03/2015 5:43 pm
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Pillar of the Community
 United States
1788 Posts |
Oh sorry forgot to add, I took pics of 2 coins where I could make out detail in hopes someone can tell what they are 
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Pillar of the Community
United States
4964 Posts |
ploopy, go to a drug store or supermarket and get a gallon of distilled water for about a buck...that would probably work good. if you already have the cleaning solution, go ahead and give it s shot. those coins aren't going to clean up much probably, there isn't much dirt obscuring the details that are visible. on the individual picks, it looks like remaining patina on the surface of the metal. the good news is, you can't really go wrong here and damage the coins to much, they are in rough shape. it's a great lot to practice cleaning on for that reason however!
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Pillar of the Community
 United States
1788 Posts |
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Pillar of the Community
United Kingdom
4208 Posts |
The key thing is to have patience: Gringotts et al offer quicker solutions, but they dont alway work out so well. Personally, I'd stick to distilled water or olive oil (oil is messier, but, as said, quicker). The oil's mechanism of cleaning is quicker due to a slight acidity. The mineral leeching that DW does is quite useful - often, coins are received with bronze disease which corrodes the coin rapidly and eventually will wholly destroy it - the way to treat this is to use DW soaks to leech out the chloride ions that cause the disease (of course, changing the water regularly). Coins with BD should be quarantined from unafflicted coins.
The final picture appears to be a quite interesting coin - I suspect it might be a provincial issue showing a dolphin. Coins in such condition are hard to clean - I suggest you utilise oil for that one (along with the aforementioned patience - id start by giving it a short bath, about a week, followed by a good brush, then a longer term soak on the order of months with the occaisonal checkup and brush to check its progess. If you're lucky, the green will melt away very quickly, but I doubt much detail will be left on this one - if you're unlucky, the surface might be too fragile and and melt away too, leaving nothing behind it).
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Pillar of the Community
 United States
1788 Posts |
I went to the grocery store, and they didn't have non virgin olive oil. Is it also marketed as pure olive oil or is that a different thing?
Edited by Ploopy 08/03/2015 8:08 pm
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Replies: 27 / Views: 5,698 |