As long as they are raw, there is no way to insure they will remain in their original state. Even the TPGs will no longer guarantee red coins beyond a certain point.
Very true about the color guarantee changes. For PCGS: We've also made a change in how we handle the guarantee of color for copper coins. The fact is that color for copper can change depending upon where a coin is stored. The villain is humidity, and if you have mint red copper coins stored in Hawaii or Florida, for example, there's a good chance that the environmental factors can alter the color of the coins. This is obviously beyond our control so consequently we will not be guaranteeing the color of copper coins graded or sold after January 1, 2010. https://www.PCGS.com/news/PCGS-grad...antee-update
Coins made of copper, bronze and brass or are copper-plated can change over time. Accordingly, with regard to copper, bronze, brass or copper-plated Coins, the grade portion of this Guarantee will no longer apply after the 10-year anniversary of their date of encapsulation. The expiration date of the grade portion of this Guarantee can be found by entering the Coin's certification number in the Verify NGC Certification section of the NGC website or by contacting NGC Customer Service. https://www.ngccoin.com/coin-gradin...c-guarantee/
A copper coin's color can change naturally over time from red (noted as "RD" on the NGC certification label) to red brown ("RB") to brown ("BN"). This is an irreversible process and NCS conservation cannot change the BN, RB or RD designations assigned to copper coins.
For what it is worth, the red proof cents I freed from my OGP sets to fill the Lincoln Dansco holes are still pretty red after nearly 40 years. Your mileage may vary. Check with me in another 40 years.
I think if you keep your finger oils from touching the faces, and keep the humidity out, the red color will stay there for a very long time.
Suffering from bust half fever. Want to learn how to attribute early half dollars by die variety? Click Here: http://goccf.com/t/434955 Shoot me a PM if you are looking to sell bust halves.
From my personal experience (not from articles) I found the Intercept Shield 2x2 Snaplock Holders and also boxes lined with Corrosion Intercept for those or other 2x2s (the active ingredient in Intercept Shield) work when copper is involved - I use it more for non bullion collectible silver/gold, and they do make an album also for Indian cents lined with Intercept Shield if you are the dearborn type that likes albums. Its a unique approach to protecting metals from corrosion by acting as a sacrificial corrosion agent. In other words, when corrosive gases come in contact with the Intercept Shield material, they are instantly neutralized rather than the coin. The company appears they are taken over and I guess being sold now at resellers only so I didnt mention initially. https://www.interceptshield.com/boxes.html and https://www.interceptshield.com/albums.html
Quote: I think if you keep your finger oils from touching the faces, and keep the humidity out, the red color will stay there for a very long time For what it is worth, the red proof cents I freed from my OGP sets to fill the Lincoln Dansco holes are still pretty red after nearly 40 years. Your mileage may vary. Check with me in another 40 years
Yes that isn't abnormal for those who live in more moderate environments/temp controlled etc and you can add silica gel packets otherwise that absorbs moisture that makes its way inside your safe deposit box, safe or other storage area preventing it from reaching your coins and causing damage. The grading companies are just covering themselves since they would have to pay out just because a coin changed otherwise. But obviously some people live in very high humidity environments, use basements etc with old coin collecting supplies that provide no protection etc... So we cant generalize to everyone.
Quote: You could encapsulate the entire Dansco album in lucite - but then it would be difficult to add coins. Think of this as a large air tight.
Good but not practical except when its to be permanently encased like a single set or coin. I shared this once before but Ben the coin geek showed some cool lucite Encased Coins since you mentioned it. And obviously unlikely to be taken back out for resell but they can look kinda cool if you watch the video.
How about coating them in shellac? Then they would still fit in a Dansco, and many years in the future you can soak them in acetone to return them to their original surfaces. It hurts to think about doing that, but it probably would work.
Quote: The grading companies are just covering themselves since they would have to pay out just because a coin changed otherwise. But obviously some people live in very high humidity environments, use basements etc with old coin collecting supplies that provide no protection etc... So we cant generalize to everyone.
I always bought the optional sleeves that were available for the Dansco albums. That provided some additional protection. Then each album would go into a ziplock bag, I'd place a desiccant pack in the bag with it, press all the air out of it and seal it up. Then it would go into the storage location with additional desiccant packs and be sealed there. Not perfect but I've seen no further toning on any of my coins so far.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use
Posted 05/17/2023 8:54 pm
Uncirculated American Silver Eagles 
