Roman silver

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MLDetect
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Roman silver

Post by MLDetect » Mon Nov 27, 2017 7:42 pm

Pretty sure I have found a roman silver but it's so crusty and I can not shift the crust by soaking in olive oil.

Any help would be appreciated crust is so thick and I really want to see my coin.



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Re: Roman silver

Post by Tomo » Mon Nov 27, 2017 7:44 pm

Any pictures :)
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Re: Roman silver

Post by oldartefact » Mon Nov 27, 2017 7:45 pm

mildenhalldetect wrote:
Mon Nov 27, 2017 7:42 pm
Pretty sure I have found a roman silver but it's so crusty and I can not shift the crust by soaking in olive oil.

Any help would be appreciated crust is so thick and I really want to see my coin.
If we could see a pic ... it will be easier to give advice.
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Re: Roman silver

Post by Allectus » Mon Nov 27, 2017 7:47 pm

Electrolysis...by far the best & safest method for removing the scale that builds up on early silver. ::g

viewtopic.php?f=122&t=59784&hilit=magic


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Re: Roman silver

Post by MLDetect » Mon Nov 27, 2017 8:03 pm

Oh I uploaded picture didn't realise it didn't work.
Here it is
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Re: Roman silver

Post by MLDetect » Mon Nov 27, 2017 8:07 pm

Allectus wrote:
Mon Nov 27, 2017 7:47 pm
Electrolysis...by far the best & safest method for removing the scale that builds up on early silver. ::g

viewtopic.php?f=122&t=59784&hilit=magic


A ;)
Looks awesome might have a go,nothing to lose as it's not even a coin at the moment just a crusty mess

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Re: Roman silver

Post by coal digger » Mon Nov 27, 2017 8:32 pm

Looks like a silver roman,how big is it?,cd ::g
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Re: Roman silver

Post by MLDetect » Mon Nov 27, 2017 8:51 pm

coal digger wrote:
Mon Nov 27, 2017 8:32 pm
Looks like a silver roman,how big is it?,cd ::g
20mm diameter.
Do you think there is any saving it?

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Re: Roman silver

Post by fred » Mon Nov 27, 2017 8:53 pm

With that sort of crud I would have thought that it is more likely to be a debased silver Antoninianus. It looks a tad chunky for one though so perhaps it had just had a hard life. :D
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Re: Roman silver

Post by Me and my boy » Mon Nov 27, 2017 9:04 pm

I would electrocute it too. You’ve nothing to loose. I’ve done as bad coins with great results( well I think they look better). Currently you can see nothing, but it will( should ) work well. I use a harsh method of a battery charger with the croc clips and hot water and loads of salt. 30 seconds at a time and a hot soppy water wash inbeteen.
Let us know and show us the results of you do it.
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Re: Roman silver

Post by Twit » Mon Nov 27, 2017 9:09 pm

mildenhalldetect wrote:
Mon Nov 27, 2017 8:07 pm
Allectus wrote:
Mon Nov 27, 2017 7:47 pm
Electrolysis...by far the best & safest method for removing the scale that builds up on early silver. ::g

viewtopic.php?f=122&t=59784&hilit=magic


A ;)
Looks awesome might have a go,nothing to lose as it's not even a coin at the moment just a crusty mess
Electrolysis can work, but it is also possible to damage a coin with it - no discredit to allectus at all ( and these topics are often hotly debated) ....you will have plenty of time to look at it later. I am not too fussy about cleaning methods, just choosing the ones that work best ( in terms of result/effort/time ) . As silver is quite stable it seems a shame to use high activity cleaning that might affect it...so personally I would go for gentler soaks of milder acid or amonia, which would be slower but work. I had a very saltwater encrusted silver, looked like nothing, but came out finely detailed that way. No metal brushing or rubbing either as this will scratch up the surface. Completely your choice though.

Here are a few more ideas:

http://www.metaldetectingworld.com/clea ... lver.shtml

If you go for electrolysis then make sure the polarities are correct, use bicarbonate of soda as electrolyte, use a thicker carbon pencil lead as cathode. Troubles can be wrong polarity, reduction of other metals onto the coin, other strange chemistry. Several volts differential has its own effect on a setup. Coin cleaning is not an exact science, but there are known pitfalls. So if you brush a coin use the softest brush you can stand, under running water so debris doesn't scratch the coin, for example. I often pickle more recent brass to remove a false copper coating.... vinegar and h2o2 mixture, innocuous enough given a brass coin left in vinegar for a few hours suffers little damage... but the h2o2 present completely pitted a coin when forgotten overnight, and on one side only...duh. Just saying.
Last edited by Twit on Mon Nov 27, 2017 10:07 pm, edited 3 times in total.

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Re: Roman silver

Post by coal digger » Mon Nov 27, 2017 9:17 pm

mildenhalldetect wrote:
Mon Nov 27, 2017 8:51 pm
coal digger wrote:
Mon Nov 27, 2017 8:32 pm
Looks like a silver roman,how big is it?,cd ::g
20mm diameter.
Do you think there is any saving it?
Looking good for a denarius mate,cd ::g
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Re: Roman silver

Post by wallydog1 » Tue Nov 28, 2017 12:36 am

Hi All, DO NOT USE SALT on Roman silver! far to harsh....it will leave pocmarks lilk the lunar surface, 1/2 litre of water to 2 heaped tablespoons of washing soda crystals, almost boiling water.

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Re: Roman silver

Post by MLDetect » Sat Dec 02, 2017 6:45 pm

Allectus wrote:
Mon Nov 27, 2017 7:47 pm
Electrolysis...by far the best & safest method for removing the scale that builds up on early silver. ::g

viewtopic.php?f=122&t=59784&hilit=magic


A ;)
Hi I have done some electrolusus. Practised on a notary button first which came out amazing! Anyway;
I done 15 min intervals and had to do about 2 hrs in total there was so much crud, in fact still a lot of crud remains.
I have attached images after electruses and some details can just be seen,is this enough to I'D? and can you recommend any further zapping or other cleaning? I'm kind of resigned to the fact this coin is never going to be a looker . It's 20 mm diameter by the way.

Thanks
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Re: Roman silver

Post by Allectus » Sat Dec 02, 2017 6:55 pm

A watery silver Ant. ::g

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Re: Roman silver

Post by MLDetect » Sat Dec 02, 2017 7:18 pm

Allectus wrote:
Sat Dec 02, 2017 6:55 pm
A watery silver Ant. ::g

A ;)
Is there any benefit in zapping this anymore or do you think this is as good as it will get. At least I have an I'D thanks for that. Your id skills are spot on

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Re: Roman silver

Post by Allectus » Sat Dec 02, 2017 7:21 pm

mildenhalldetect wrote:
Sat Dec 02, 2017 7:18 pm
Allectus wrote:
Sat Dec 02, 2017 6:55 pm
A watery silver Ant. ::g

A ;)
Is there any benefit in zapping this anymore or do you think this is as good as it will get. At least I have an I'D thanks for that. Your id skills are spot on
I think you've done all you can there mate. ::g
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Re: Roman silver

Post by MLDetect » Sat Dec 02, 2017 7:32 pm

Allectus wrote:
Sat Dec 02, 2017 7:21 pm
mildenhalldetect wrote:
Sat Dec 02, 2017 7:18 pm
Allectus wrote:
Sat Dec 02, 2017 6:55 pm
A watery silver Ant. ::g

A ;)
Is there any benefit in zapping this anymore or do you think this is as good as it will get. At least I have an I'D thanks for that. Your id skills are spot on
I think you've done all you can there mate. ::g
Thanks for help. Much appreciated

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Re: Roman silver

Post by MLDetect » Sat Dec 02, 2017 8:25 pm

fred wrote:
Mon Nov 27, 2017 8:53 pm
With that sort of crud I would have thought that it is more likely to be a debased silver Antoninianus. It looks a tad chunky for one though so perhaps it had just had a hard life. :D
Spot on

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Re: Roman silver

Post by muscles78956 » Sat Dec 02, 2017 9:09 pm

wallydog1 wrote:
Tue Nov 28, 2017 12:36 am
Hi All, DO NOT USE SALT on Roman silver! far to harsh....it will leave pocmarks lilk the lunar surface, 1/2 litre of water to 2 heaped tablespoons of washing soda crystals, almost boiling water.
does using salt not give off chloride gas with salt being sodium chloride?

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Re: Roman silver

Post by thefiggis » Sun Dec 03, 2017 5:59 am

muscles78956 wrote:
Sat Dec 02, 2017 9:09 pm
does using salt not give off chloride gas with salt being sodium chloride?
Yes it does, which is why it's vital to have really good ventilation. I run an extension lead into the garden when I'm giving something a zap.
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