I like Cleaned Coins and you should to thread

so what is a good strength to start with?

 

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Which dip would be good for copper?

 

I just wanted to mention that I was bored one day at the shop. I took a handful of silver and copper (cheap stuff) and put it through a cycle in the jewelry cleaner. The copper came out corroded and ate up. Surprisingly the silver was pretty much undetectable. Just wanted to mention that this was a one time thing, but it actually really cleaned the silver up nicely.

 

doesn't cleaning kill the luster?

 

yes

 

How can it not?

 

it strips it. How can it not? It remove the toning you have to physically remove silver ions.

 

You can do this with cheap stuff.

I know there are plenty of common date copper pennies in circulation. Can't you just experiment with those? I only use alcohol and distilled water on pennies, especially those from hand wrapped rolls since they can be pretty disgunting. Of course if you do something to alter the appearance of a penny that is noticable, the only people that will by it are those looking for a deep discount so be prepared to lose a lot of money. I would by obviously cleaned large cents for $5 when they are worth at least 2x-3x that.

 

That deifies the laws of the universe. If the coin tones and is dipped, it not only strips a layer of the coin, but it will weight measurably less. Matter can not be created or destroyed.

 

I assume you're concluding that simply upon the supposition that they shouldn't look that "white" for their age. I agree, FWIW, but I'm just asking. That's your "evidence." Is that right?

 

That would principally be the darker or flatter areas in the fields where the luster is subdued. Right?

 

This is the toning Ag(SO4). Where do you think the Ag comes from?