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Before and Afters - Just for fun.
Mudwiggle  
Posted : Sunday, 5 June 2016 4:30:07 PM(UTC)
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Originally Posted by: Iggyrulz Go to Quoted Post

That's one nice coin MW, nice job on the cleaning. You haven't lost any detail either, which can sometimes happen.


Cider vinegar soaks, with intermittent rubbing between fingers, then a very light dusting with a soft brass wheel and a bit of Brasso.

The obverse is still gunked, I might just bring up Georges head and leave the rest. Novelty reasons only :)

I've toyed with this partial clean before on pennies, just highlighting the bird, but always get carried away and end up shining up the whole thing.
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Iggyrulz  
Posted : Sunday, 5 June 2016 5:12:14 PM(UTC)
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Thanks , there are a few pics on the net of coins painted with just the raised portions polished and look mint.

http://www.coinjewellerynz.com/

HH Iggy
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Iggyrulz  
Posted : Tuesday, 7 June 2016 10:25:44 PM(UTC)
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Had a wee play with the cider vinegar and was rewarded with pleasing results.

First pic after a warm soapy bath and nail brush scrub.

UserPostedImage

To this........

UserPostedImage

The pic makes it look like only the high points were touched but the entire coin came up sparkling.
Maybe not the thing to do to something of greatness though, but I'm not going to stress over a 1999 coin.

Thanks for the tip MW it works a treat.

HH Iggy
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GoldPandemic  
Posted : Monday, 27 June 2016 5:38:59 PM(UTC)
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UserPostedImage
Copper Lee jean button.

UserPostedImage
Was a solid black ball but too light, 3g sinker inside.
See the before here no.1
Treasure/coins: $1
Other artifacts: 1888 button
Lead: 914g
Copper: 46
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Mudwiggle  
Posted : Saturday, 9 July 2016 10:24:07 AM(UTC)
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UserPostedImage

The larger clast gave some sort of tank inspection/filler cap, possibly associated with the coal mining that went on in the area.
UserPostedImage

The smaller one was just a tiny washer (obviously trying to compensate by amassing as much as it could!)

- One day I'll crack one of these and find a tasty relic :)
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Mudwiggle  
Posted : Thursday, 21 July 2016 9:16:04 PM(UTC)
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UserPostedImage

58th (Rutlandshire) Regiment of Foot button
Pewter
7Hrs with dental pick under microscope - Not in one sitting!
Sealed with matt urethane under vacuum.

The other button was too corroded to safely clean as the corrosion blemishes had eaten deeply into the surface, so treated it and left as found.

Unlike iron, once removed from the marine environment, pewter corrosion is stable. Despite the numerous oxidation 'warts'. It is preferable to leave the corrosion unless you want to reveal detail, as I did here because there was enough fine detail preserved under the low level oxidation. The prominent 'wart' on the left would have not revealed any detail underneath, so left in situ - smack in the middle of "Gibraltar"
Never use acids to clean old pewter (incl vinegar as acetic is one of the more damaging to pewter) to the point of not storing lead or lead alloys in Oak boxes/cabinets.
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Metal Kiwi  
Posted : Thursday, 21 July 2016 9:38:16 PM(UTC)
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Good score MW.
I have one of those 58th buttons too found on an Auckland city beach so they
got around a bit those foot soldiers.

MK
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WWW BLOG
GoldPandemic  
Posted : Friday, 22 July 2016 9:13:42 PM(UTC)
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Welldone, thanks for all the tips on cleaning & preserving stuff - it's invaluable info.
Treasure/coins: $1
Other artifacts: 1888 button
Lead: 914g
Copper: 46
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