Franklin's - in Mint Sets, with White Corrosion

Waiting to see the lab report!

 

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I'd be surprised if acetone takes this off. I think it requires something harsher.

 

Maybe in combination with some peroxide.

 

Now I'm confuzzled.

 

a coworker's dad bought them from the mint. I have sold quite a bit of the collection and as payment he has given me a good price on things I wanted. These two sets didn't sell so I bought them for my collection knowing I would break them apart.

 

Did he also have anything like old plastic flips, coin holders, pages (PVC) in the box?

 

all of the above plus more, but none of the other sets had any reaction.

 

Then I'd bet those green specks are PVC. Those 2 sets were just the ones most vulnerable to exposure with a PVC releasing holder touching or nearby.

 

PVC damage - they should have been cut out of that pkg long ago.

 

over the weekend when I have time to focus, I will start trying different ways to remove it.

 

Yeah. A bench grinder should do it.

 

I didn't address the spots because I really don't have any good data, just a picture. It looks like it is sitting on the surface of the coin. like something was spilled or dripped onto it. What is is I have no clue and I am not willing to speculate.

 

I was teasing a bit and thank you for the bit of speculation you did provide.

 

If no results with acetone, try xylene.

 

I would melt it and make 5 mercury dimes

 

Outside the box you are

 

Merry x-mas to you and V.Kurt

 

1st - tried distilled water for 10 minutes - crystals broke away
2nd - tried 1/2 distilled water, 1/2 Acetone for 10 minutes
3rd - tried 1/2 distilled water, 1/2 eZest Speed dip for 10 minutes
Not sure if I will do much more.
1st picture is after step two, remaining steps are after step 3.