| Author |
 Replies: 32 / Views: 1,560 |
|
|
|
Pillar of the Community
United States
1406 Posts |
I agree, the new photos show luster under that patina. I would imagine a chemical would have stripped that away and left hairlines.
|
|
Valued Member
 United States
184 Posts |
Thank you @BadThad for the information and the tips. I understand acetone that it dissolves organic, but what does isopropanol do? I see in stores only 99% on first look. Will that 99% leave any residues compared to the 100%?
Edited by NJcoppers
03/11/2024 5:20 pm
|
|
Pillar of the Community
 United States
7174 Posts |
I can't grade coins to save myself, but I can't see anything that would knock this below 66. Not a mark on it. This is a fantastic looking coin.
|
|
Valued Member
Germany
116 Posts |
It's a beauty. Nice pics. Can I have it?  |
|
Bedrock of the Community
 United States
18665 Posts |
I'm going to go with MS66 most likely BN. the photos are really tough to get a good read on the color. obviously not RD. the blow up photos don't help due to the light glare
|
|
Bedrock of the Community
United States
19951 Posts |
Quote:
Thank you @BadThad for the information and the tips. I understand acetone that it dissolves organic, but what does isopropanol do? I see in stores only 99% on first look. Will that 99% leave any residues compared to the 100%? Acetone and IPA both dissolve organic substances but IPA is more effective at it. It has a bigger non-polar group bonded to the oxygen. It's also more effective at removing recent fingerprints IMO but..... If you only have 99% IPA, just follow it up with an acetone rinse to remove any residual water. This is the order I normally follow anyway just in case the IPA misses any residues that lean to the polar side. Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
|
|
Valued Member
United States
184 Posts |
Thank you all of you again. @BadThad, thank you especially for the conservation tips. I did buy one gallon of 99% IPA and 100% acetone as well, so this should work for this coin.
Edited by NJcoppers
03/26/2024 12:48 am
|
|
Bedrock of the Community
United States
19951 Posts |
Don't soak the coin, just rinse it and put it into an airtite capsule (ideally). That will freeze the toning where it is right now. You don't want it to keep advancing.
Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
|
|
Valued Member
United States
184 Posts |
@BadThad Thank you. Are the Air-Tite coin holders really airtight? Seem like just two plastic holders press over/into each other.
By the way: I read your polarity priority ladder guide with great interest!
Edited by NJcoppers
03/26/2024 8:37 pm
|
|
Valued Member
United States
184 Posts |
@SoundBeing This is one of my only classic US coins that seems pristine and may be of some value. So the answer is: No? :) But thank you for your kind appreciation for the coin! |
|
Bedrock of the Community
United States
19951 Posts |
Quote:
Are the Air-Tite coin holders really airtight? Nothing on earth is truly air tight. However, you can slow the process to a very slow crawl In my experience, there is not a better, safer, more economical coin holder on the market. Nonetheless, ALWAYS user multiple layers too. With Lincoln cents, you can use the 2x2's made for quarters as the next layer of protection. Just one staple on the 2x2 and you can label and easily store them. For me, I use binders. The next layer is a 2x2 binder sheet (PVC believe it or not), you can cram 20 of those airtite 2x2's per sheet. Next layer, heavy duty ziplocking bags. I can fit a whole binder in one bag with desiccant. Final layer, waterproof sealing tubs, I think they're Hefty brand, they seal very tightly. And you probably thought coin storage was simple?  |
|
Valued Member
United States
184 Posts |
@BadThad Well, it certainly requires a lot of diapers :) I had many coins damaged and got worse during my various moves from continent to continent. Some were in PVC from the 1980's. Now I have some time to preserve the nicest ones or most acutely affected ones and will slowly start going through all of them.
As far as the coin diapers... I do not want to link to a product, because I do not think it's allowed. A while ago purchased some 2x2 cardboard + mylar flips that require stapling. Also bought double pocket mylar flips and binder sheets that are non-PVC. So we are not talking about snap-lock Air-Tite coin capsules. But 2x2 airtite named mylar flips without cardboard? Is airtite a generic name now?
Edited by NJcoppers
03/26/2024 11:24 pm
|
|
Moderator
United States
56855 Posts |
I believe Air-Tite is a brand name.I think Air-Tite brand capsules are not airtight and neither are TPG slabs for that matter.The only airtight coin holder I know of is a cube of liquid Lucite  John1  |
|
Bedrock of the Community
United States
19951 Posts |
Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
|
|
Valued Member
United States
184 Posts |
Thank you both for the information and the link!
|
| |
Replies: 32 / Views: 1,560 |
First Page
Posted 03/11/2024 5:14 pm
