Franklin's - in Mint Sets, with White Corrosion

I'm very much not trying to be difficult or challenge a milk spot scenario, but if it was the result of an improper rinse of the planchet then why the big glob on the left side of the packaging in the original 2nd photo?

 

Log in or Sign up to hide this ad.

Hi Tommy, can you repost which photo you are talking about specifically?

 

Near the top left of the pouch? I thought that was just another reflection like the one on the right...

 

The right does look like a reflection. The left looks like it has texture and depth. I really don't know for sure.

 

reflection

 

can post better images tonight

 

Thanks for the photo addition. That clears that part up for me.

 

Since no one has said anything about it, that isn't a mint set, it's a proof set.

 

One source (Rick Tomaska- not sure which book) says that milk spots are soap residue left on the planchet because the planchets were not properly rinsed to remove all the soap. The soap residue is then permanently struck into the coin during the minting process creating the white spots. They cannot be removed, they are part of the coin. I have seen a coin with a milk spot that covered nearly the entire obverse.

 

From you - I was hoping for more insight into the spots. As usual, you are correct.

 

At this point I'm on board with milk spots, in the extreme.

 

Buttermilk?

 

It practically looks like mold.
And I also thought the big spot looks like spilled paint.
I bet if V.Kurt were still here he might have some mad scientist
formula to get rid of those Super Milk spots.
Post acetone photos to see if there's a change.
But I am thinking this is going to require a stronger dip.

 

I agree Doug, the green Crystal's easily flake off the coin and makes me wonder what crystallizes like this that would be introduced during the minting/handling process. Thank you for your thoughts.

 

Useless answer: An alien gobbed on it.

Snarky, and equally useless, answer, with apologies to Bill Fivaz: I don't know, I wasn't there when it happened.

Less useless answer in light of the previous one: It could be anything, as the mint operation is not a clean room, and 56 years is a long time to give contaminants on the surface of a coin, or transferred from the plastic, a chance to do their work.

Related insightful advice: Never buy proof sets sight unseen.

 

picked these up for less than melt so no harm done. Didn't want to pass them off to someone else and an coin experiment is always fun and informative.