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Ancient Coin - Turtle Stater?

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pishpash's Avatar
United Kingdom
3626 Posts
 Posted 08/24/2014  07:01 am  Show Profile   Bookmark this reply Add pishpash to your friends list Get a Link to this Reply
I don't have an opinion of what it is made of. I always use DW or de-ionised water. On some rare occasions I have used Olive Oil but only on silver. Once you have used OO you can't use DW. I just don't like the idea of gunky OO on bronze, and OO can change the patina.

I am assuming that it looks the colour of silver, electrum looks to be a very pale yellow in the examples I have seen online. I have never seen one "live".

If the incuse square can be cleaned out you might have better luck in identifying it. It might need a very long soak and lots of patience.
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Topcat7's Avatar
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 Posted 08/24/2014  7:25 pm  Show Profile   Bookmark this reply Add Topcat7 to your friends list Get a Link to this Reply

I have read where it has been suggested to clean out between the lettering (and therefore the incuse square) with the point of a needle, but I fear leaving the presence of 'scratches' using that method, so a long soak in de-mineralized water (doing that now) is my first avenue of attack.

Then, I propose to brush with a nylon toothbrush (cut short) to remove any 'garbage' that has been 'loosened' by the soaking.

By the time all of this has been done, my Sonata Light Box might have arrived and I can set to and try to take better photographs of these coins and post them.
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paul27613's Avatar
United States
152 Posts
 Posted 08/24/2014  7:31 pm  Show Profile   Bookmark this reply Add paul27613 to your friends list Get a Link to this Reply
I believe the active acid in olive oil is oleic acid. Canola oil may have some eruric acid. Definitely different. Go with olive oil because you can make some great salads while cleaning coins.............
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pishpash's Avatar
United Kingdom
3626 Posts
 Posted 08/24/2014  7:31 pm  Show Profile   Bookmark this reply Add pishpash to your friends list Get a Link to this Reply
Patience is your best friend here. That crud has been there fore 2000 years and more, it will take a while to shift it.
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Topcat7's Avatar
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 Posted 08/24/2014  8:32 pm  Show Profile   Bookmark this reply Add Topcat7 to your friends list Get a Link to this Reply
Thanks for joining in, Paul.

See, all of this knowledge is out there somewhere.
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Topcat7's Avatar
1121 Posts
 Posted 09/26/2014  06:02 am  Show Profile   Bookmark this reply Add Topcat7 to your friends list Get a Link to this Reply

An update for those who may be interested.


Ancient-Coin---Turtle-Stater?
Reference Jencek Historical Enterprise.

Thanks to everyone.
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