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Author Topic: Roman bronze cleaning  (Read 1991 times)

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Offline Basileus Nikephoros Antialcidas

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Roman bronze cleaning
« on: February 27, 2020, 06:04:41 pm »
Hello. I would like to clean this coin. I know it is a nice coin, some may say it doesn't even need cleaning but I am determined to do it. I know the risks and i know many may say I should try my luck with an other one. I considered all this ideas and I am almost ready to start. I know how to work gently as I am a miniature painter so I can assure you I have steady hands and a lot of patience. I need help with were to start from. Should I try to soften the soil first, what household items can I use to clean it, what if I find that the soil is cemented? I thank you all for your help in advance!
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Offline Zenon M

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Re: Roman bronze cleaning
« Reply #1 on: February 28, 2020, 04:27:06 am »
I think, a small, sharp scalpel and a set of needles may help. As for household items: I often use needles stuck in wine corks...

ZM
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Offline SC

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Re: Roman bronze cleaning
« Reply #2 on: February 28, 2020, 05:52:08 pm »
Scalpel, whetstone, magnification, lighting, + steady hand.

Plus side = you will see more detail.  Down side = you will loose the (admittedly imperfect) contrast and have an all-black coin.

SC
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(Shawn Caza, Ottawa)

Offline Basileus Nikephoros Antialcidas

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Re: Roman bronze cleaning
« Reply #3 on: February 28, 2020, 06:32:07 pm »
Quote from: otlichnik on February 28, 2020, 05:52:08 pm
Scalpel, whetstone, magnification, lighting, + steady hand.

Plus side = you will see more detail.  Down side = you will loose the (admittedly imperfect) contrast and have an all-black coin.

SC
Can I use water or medical alcohol to wash it after?
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Offline Basileus Nikephoros Antialcidas

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Re: Roman bronze cleaning
« Reply #4 on: February 28, 2020, 08:31:33 pm »
Quote from: otlichnik on February 28, 2020, 05:52:08 pm
Scalpel, whetstone, magnification, lighting, + steady hand.

Plus side = you will see more detail.  Down side = you will loose the (admittedly imperfect) contrast and have an all-black coin.

SC
I finished after hours. The photo as it is from my cell phone and the others from the seller, it doesn't help a lot as it is shown quite harsh which is not in reality. I did a very small tiny line near the legend and in extreme magnification it shows a bit of bronze metal, but with naked eye can't be seen, is small lines here and there considered normal, because I can't imagine any way without risking making some here and there.
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Offline Basileus Nikephoros Antialcidas

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Re: Roman bronze cleaning
« Reply #5 on: February 28, 2020, 08:34:39 pm »
The photos of the last product. They are terrible as they are taken with my phone but you might see the progress.
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Offline Akropolis

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Re: Roman bronze cleaning
« Reply #6 on: February 28, 2020, 10:09:59 pm »
Excellent progress.
Gentle. Slow and careful.
PeteB
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Offline Basileus Nikephoros Antialcidas

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Re: Roman bronze cleaning
« Reply #7 on: February 28, 2020, 10:27:46 pm »
Quote from: Akropolis on February 28, 2020, 10:09:59 pm
Excellent progress.
Gentle. Slow and careful.
PeteB
Thank you very much! I appreciate your comment. Is the small hairline showing the metal underneath the patina considered normal to happen when cleaning? It is very small, invisible in the naked eye. Should I consider it serious damage? Is it even possible to not make any lines on the patina? Sorry for bothering you with so many questions.
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Offline SC

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Re: Roman bronze cleaning
« Reply #8 on: February 29, 2020, 09:30:01 am »
Looks very good
SC
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(Shawn Caza, Ottawa)
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