Thoughts on this pic of 1964 proof dime. What is the deal?

BSqr · November 20, 2002 1:18AM

Have a look at this 1964 proof set dime. I was wondering if anyone might know what the substance is that is on the dime inside the plastic.

Thanks in advance.

CarlWohlforth · November 20, 2002 1:29AM

It looks like olive colored milk spots. I don't know what they are but have seen them before.

BSqr · November 20, 2002 1:49AM

How did the spots get on the coin? Did they develop over time or were they on there from the get-go?

Russ · November 20, 2002 1:54AM

There's a spot gremlin that goes around ruining these sets, and the little critter seems to have a fixation on me.

Not sure what causes them. Perhaps a bit of moisture sealed inside, a pin pr!ck (I can't believe that word is censored) and some kind of exposure over the years? What I do know, though, is that they ain't coming off without damaging the surface of the coin.

Russ, NCNE

nwcs · November 20, 2002 2:08AM

I wonder if the proof set was ever soaked in water?

BSqr · November 20, 2002 3:02AM

well I bought it as an original 'unopened' mint set from and the envelope didn't look llike it had been soaked. For a package that's almost 40 years old the envelope sure is in good condition. always make ya wonder what you're gettin.

prooflike · November 20, 2002 3:49AM

Didn't they use some kind of wash for the planchets?? Coulld that be left over wash residue that has oxidized over the years?

pontiacinf · November 20, 2002 4:07AM

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early 50's to middle 60's (stopped when they went clad) they used to wash the planchets with a mild solution of ivory soap n warm water...unfortunately that soap 40 years later is a itch ta get off

Thoughts on this pic of 1964 proof dime. What is the deal?

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