Tell me about milk spots.......

I must admit once I used a very soft eraser to remove a milk spot, it worked, and NO I would not recommend it.
It was a few years ago and have since removed the photos, although the they may still on the site that was free to post images and now wants to charge for it.

 

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Would that be a white eraser…LOL

 

Its a self fulling prophecy. Cus I did x y didnt happen but y wouldnt have happened anyways in the majority of instances. Think of it this way, if all it took was an acetone bath you wouldnt have spotted coins from all over the world. If anyone actually knew the true answer the problem would have been solved as well. I'm pretty confident that a simple acetone bath is not the answer though

 

True milk spots have been on our coin since the 1950's. I never herd the term until sometime in the 1970's. I thought it was common knowledge that the Mint was responsible for the spots. The whitish stains and spots seen since the start of the SE program are probably caused by chemicals used at the mint also.

Now, we all should know that coins develop spots after being slabbed as "perfect." That is why the TPGS dropped their guarantees. Who knows the cause of each of them; however, I am 100% sure that in many cases it is the compressed air.
Additionally, most of them ARE NOT caused by impurities in the planchet. Spots caused by impurities on the coin's surface are easy to resolve.

 

I was wondering....Thanks.

 

So if they know it, why do they still
use it ? it begs the question ‍♂️

 

I've read that "milk spots" can show up days, weeks, months, later, so I'd venture to guess those spots showed up AFTER it was graded and encapsulated.

 

Guess raw coins get compressed air too then? You're on an island of basically your own if youre 100 percent sure of that

 

Well, one day when you have run actual experiments at a TPGS (1991) and then sealed coins in slabs, you can catch the slow boat to knowledge and join me on that island. I don't post nonsense I cannot defend.

 

I would think the value would be significantly impacted like my previous
post suggests, but I don’t think it
would be much different from Morgan dollars going rogue in the holder..LOL

 

Well it is surprising that someone who has taught ANA courses teaching others either thinks milk spots are caused by air or doesnt seem to know what milk spots are. I guess the compressed air puts them on all the raw coins that get them too and cant be removed right?

Simply hitting a coin with air does not mean the air caused it. Every coin would have them if that was the case. If it was that simple the world mints would have solved the issue decades ago and they would be easy to fix

 

baseball21, posted: "Well it is surprising that someone who has taught ANA courses teaching others either thinks milk spots are caused by air or doesnt seem to know what milk spots are.

I thank you for the shout out; however, what's EXTREMELY surprising to me is that I have to spend time correcting something you did not comprehend so that others here are not misled. Most of us here know what actual "Milk Spots are - you and me included. That's why I made a distinction in my post above: "True milk spots have been on our coins since the 1950's...the Mint was responsible for the spots. [IN ADDITION] The whitish stains and spots seen since the start of the SE program are probably caused by chemicals used at the mint also."

Now, we all should know that coins develop spots after being slabbed as "perfect." That is why the TPGS dropped their guarantees. Who knows the cause of each of them; however, I am 100% sure that in many cases it is the [moisture vapor in the] compressed air [used at the TPGS]...

Dumb me.

I should have included all the [ ] in my previous posts.

I guess the compressed air puts them on all the raw coins that get them too and cant be removed right?

Your use of "all" does not apply. Whiteish spots on coins have many causes. So far only the small spots caused by some contamination after the coin was struck (including water vapor in a poor compressed air system) can be removed on MS coins. I know of several folks who have done it without hurting the coin! The true milk stains cannot be removed in a way that cannot be detected.

Simply hitting a coin with air does not mean the air caused it. Every coin would have them if that was the case. If it was that simple the world mints would have solved the issue decades ago and they would be easy to fix.

Of course this is true. It's what's in the "air" and AFAIK, the Mint does
[EDIT: Thanks to Baseball] NOT use compressed air to blow stuff off the coins they strike! I have read that at least one world mint has found a way to prevent spots from developing on their coins.

PS I'll be posting images later.

 

And people wonder why why the ANA is losing members

 

Rather than this: baseball21, posted: "And people wonder why why the ANA is losing members."

It would have been more helpful if you would have pointed out my failure to catch a mistake above rather than have me think you are and posting off topic!

My post above has been corrected and THANKS FOR CATCHING my omission of the word "NOT."

 

Milk spots. Commonly seen elongated on Peace Dollars:






Milk Stains (large milk spots):

 

That’s ugly…LOL guess you can always
throw that in the scrap heap, probably
would make a good paper weight..LOL

 

These spots have created some nicely toned coins in the past. Most of them came from the packaging, glues heat air and gasses from the cellophane. We have the buy, crack and resend attitude in the market. I don't doubt that sealing the slabs has a small part in the problem.

PS
The main problem with these coins is exposure to the elements of storage.
By the time most collectors see the problem it is too late. The spot has already become a problem, Verdigris gets the best of every collector.

 

I think this member may have missed the point of my images. With very few exceptions I understood that the true milk spots we see on vintage silver coins were on the coin when it fell off the press. The stains on SE are similar but not the same and many of them must develop over time. This is not considered to be toning and it is very detracting to the eye. I disagree with most of his first paragraph. I agree that packing materials, improper storage, and the environment can cause problems.
Verdigris has nothing to do with white stains or milk spots.

Pickin and Grinin, posted: "These spots have created some nicely toned coins in the past. Most of them came from the packaging, glues heat air and gasses from the cellophane. We have the buy, crack and resend attitude in the market. I don't doubt that sealing the slabs has a small part in the problem.

PS
The main problem with these coins is exposure to the elements of storage.
By the time most collectors see the problem it is too late. The spot has already become a problem, Verdigris gets the best of every collector."