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Cleaning Silver & Gold/Silver Japanese Coins

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packrat1's Avatar
United States
185 Posts
 Posted 10/10/2014  12:30 am Show Profile   Bookmark this topic Add packrat1 to your friends list Get a Link to this Message Number of Subscribers
I have some Japanese coins I'd like to clean or is this a bad idea? What should I use & what is the best way to go about it?

2 Bu (22.9% gold - 77.1% silver)
2 Shu (85.7% gold - 14.3% silver)
1 Bu (silver)
1 Shu (silver)


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Matteproof's Avatar
Korea, Republic Of
1881 Posts
 Posted 10/10/2014  12:45 am  Show Profile   Bookmark this reply Add Matteproof to your friends list Get a Link to this Reply
Cleaning kills a coin's value. Don't clean coins. Never.
Can you post a pic? What about the coins make you want to clean them?
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AgCoinAu's Avatar
Canada
3049 Posts
 Posted 10/10/2014  12:47 am  Show Profile   Bookmark this reply Add AgCoinAu to your friends list Get a Link to this Reply
An angle grinder.. .. anything less and it may still be perceived as a coin
Valued Member
Mullen's Avatar
United States
167 Posts
 Posted 10/10/2014  12:58 am  Show Profile   Bookmark this reply Add Mullen to your friends list Get a Link to this Reply
I advise against cleaning.
Valued Member
packrat1's Avatar
United States
185 Posts
 Posted 10/10/2014  01:09 am  Show Profile   Bookmark this reply Add packrat1 to your friends list Get a Link to this Reply
Ok. No cleaning. I was going to wait until I heard from people with more experience.

Here's a picture. The smaller coin is the 2 Bu & the larger is the 1 Bu.
The other two (1 & 2 Shu) are alright.

Cleaning-Silver-&-Gold/Silver-Japanese-Coins
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Matteproof's Avatar
Korea, Republic Of
1881 Posts
 Posted 10/10/2014  01:11 am  Show Profile   Bookmark this reply Add Matteproof to your friends list Get a Link to this Reply
Nope, no cleaning needed on those. Or any other coins.
Valued Member
packrat1's Avatar
United States
185 Posts
 Posted 10/10/2014  01:14 am  Show Profile   Bookmark this reply Add packrat1 to your friends list Get a Link to this Reply
Thanks for the info guys. I'll never clean a coin.
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Matteproof's Avatar
Korea, Republic Of
1881 Posts
 Posted 10/10/2014  01:20 am  Show Profile   Bookmark this reply Add Matteproof to your friends list Get a Link to this Reply
....there are exceptions though, like for ancient coins. You will need to clean them in most cases to see what's under the thick crud. Also coins that have excessive dirt/crud.
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Mullen's Avatar
United States
167 Posts
 Posted 10/10/2014  01:21 am  Show Profile   Bookmark this reply Add Mullen to your friends list Get a Link to this Reply
Agreed about exceptions like ancients.
Valued Member
packrat1's Avatar
United States
185 Posts
 Posted 10/10/2014  01:46 am  Show Profile   Bookmark this reply Add packrat1 to your friends list Get a Link to this Reply
If I get any coins that look if they are on the cleaning side, I'll post them here to get advice before doing anything.
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sel_69l's Avatar
Australia
21788 Posts
 Posted 10/10/2014  02:57 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
The 2 Bu looks to be VERY pale, much more so than mine. In the picture, it looks like patinated silver.
I can understand why the thought of cleaning it arose.
Other than that, it certainly LOOKS OK.

I would have it weighed to check for authenticity.
You may try bending it slightly so see if it's made from a lead or lead alloy. I have to admit, I was once fooled with a lead coin. ONLY once!
I still have to agree with everybody's advice:
"Don't clean coins".

Perhaps try acetone, but I think that the result will be no difference.
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John1's Avatar
United States
56855 Posts
 Posted 10/10/2014  05:13 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
packrat1,
They look great as is,do not clean them. Just wondering where you got them and what they cost you.
John1
Valued Member
packrat1's Avatar
United States
185 Posts
 Posted 10/12/2014  8:57 pm  Show Profile   Bookmark this reply Add packrat1 to your friends list Get a Link to this Reply
I just bought a digital scale from ebay & it came this week so I now able to weigh coins.

2 Bu - 3.1g / 20mm (the gold % is 22.3 not 22.9&)
1 Bu - 8.6g - 23mm

I bought these years ago from ebay & I think I gave around $30 - $35 for 2 Bu & around 20 for the 1 Bu. It's been awhile so I'm not 100% sure on the prices.
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Medieval's Avatar
3772 Posts
 Posted 10/12/2014  9:05 pm  Show Profile   Bookmark this reply Add Medieval to your friends list Get a Link to this Reply
'packrat1' - first of all congratulations for your of 50 posts.

Two comments to your topic:

1. Never clean coins if not necessary (whatever 'necessary' means in the particular case).
2. When posting pictures, post both sides - it's a good habit.

Having said that, your coins look just fine as they are.
Valued Member
packrat1's Avatar
United States
185 Posts
 Posted 10/12/2014  9:22 pm  Show Profile   Bookmark this reply Add packrat1 to your friends list Get a Link to this Reply
I finally made 50 post. Thanks for the congratulations.

Sorry for not posting both sides of the coins. I was giving an example of what the coins looked liked & why I wanted to clean them.

To make up for my wrong.


Cleaning-Silver-&-Gold/Silver-Japanese-Coins
Pillar of the Community
Australia
3831 Posts
 Posted 10/12/2014  9:37 pm  Show Profile   Bookmark this reply Add gxseries to your friends list Get a Link to this Reply
They look ok as it is. Nothing wrong with them.

As for authenticity, they also look fine with me. The so called 'gold' coin is just very low in gold content and therefore looks a bit more grey. I reckon it's just photo / light angle which makes them look quite pale in color.
My partial coin collection http://www.omnicoin.com/collection/gxseries
My numismatics articles and collection: http://www.gxseries.com/numis/numis_index.htm
Regularly updated at least once a month.
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