Let's remove some verdigris, shall we?

Here's the candidate, freed from an ICCS MS62 Lustrous Brown flip:





As you can see, the reverse is spotted with nasties, but on close inspection I believe we can ameliorate and hopefully completely excise them. We will be employing both acetone - on the off chance there is PVC plasticizer involvement - as well as Verdi-Care. I will be documenting the process in subsequent posts to this thread. Below are some detail images of the most-affected areas, as "before" pics. If you'd like greater magnification, we can bring it to bear in abundance.

It's a lovely coin, and very much worth the best effort to conserve.

 

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Can't wait to see how this one turns out!

 

Tag me when you get your final results please. Thanks.

 

Fantastic piece. I'll be thrilled to see the end result.

 

At first look I think that coin is a good candidate for Verdi-Care, and well worth the effort.

 

I'm certainly hoping so. The verdigris was represented in the listing imagery, but aside the flip (I've learned to perk my ears up hard when seeing ICCS "Lustrous Brown" flips. ), the luster was not and it's tremendous.

Consider it done.

 

Fun thread.

 

...let's get on with it.

 

Yes, he makes some of the best-tasting Kool-Aid out there.

 

Good thread. It will be interesting to follow the stages of treatment.

 

It'll take a few days for the Verdi-Care to get here; in the meantime, I'm ensuring that acetone and xylene won't do the trick all by their lonesomes.

 

Verdi-Care can work wonders under the right circumstances. This medal was almost terminal when I started. The medal is bronze and quite large at 76mm. Overall I'm satisfied with the end result considering what I started with.

 

Of course. For something like this, the first acetone soak is 24 straight hours untouched, to ensure any possible chance for it to "soak in" to the stuff on the coin happens. I'm particularly interested in the thinner spot above the N in ONE; if a simple acetone soak disappears that, it's an indicator that there's a decent chance it's PVC plasticizer at work and we may be able to get most of the way with acetone alone.

 

I wanna' see, I wanna' see, I wanna' see, I wanna' see

Probably @BadThad will too.

 

Somebody's gonna want to slap me for saying this, but....

As a generality, acetone will make PVC plasticizer byproduct soft and gooey, but even if it breaks verdigris loose, that'll always remain grainy and gritty. I intend to do something involving fingernails to make this determination, if it's possible....

I tend to grow my fingernails long, they're due for cutting, and I'm going to Dremel one to a point.

 

I wouldn't handle either chemical with bare skin. Just sayin.