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 Replies: 10 / Views: 1,984 |
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Pillar of the Community
Canada
849 Posts |
I have two rolls each of 2012 Mag and non Mag cents in the shrink wrap cello from the bank. They have been stored for two years in a metal box. I noticed today that on the magnetic coins, the end coins are discolouring (darker). Not much if any change on the non magnetic.
Do you think the other 48 coins are doing that in the roll?
Do you think the cause is the box or the shrink wrap?
Should I remove them from the wrap or the box or both?
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Pillar of the Community
United States
589 Posts |
The end coins are tarnishing since they are exposed to air. The only way to stop it is to put another older-toned cent on each end (or take them out and put them in those plastic coin tubes). The inner coins will be fine. I've got my rolls on Lincoln Shield cents filled with 52 coins, two random enders and 50 BU shields, in paper wrappers. The edges will tone, but that will be it; plastic will not tone edges.
However, depending on what type of plastic the cello is, it could cause PVC damage over time.
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Pillar of the Community
Canada
693 Posts |
Quote:
Should I remove them from the wrap or the box or both? If you want to preserve original rolls, a wrapped 1¢ roll should fit nicely in a hard plastic 5¢ tube (paper rolls will fit in a tube a bit better than the plastic ones). I doubt the plastic mint wrappers are archival to begin with anyways, so there might be a limit to what you can do without breaking the coins out. |
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Pillar of the Community
Canada
1700 Posts |
Some buyers and collectors seek out original rolls of different coins. That's the advantage your rolls have over those rolls with special wrappers (although the special edition ones are a lot more popular). I would keep it in there, since the coin definitely isn't rare. When 48/50 coins are still in good condition, I wouldn't risk exposing the rest to air.
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Pillar of the Community
 Canada
849 Posts |
Thank you for the feedback. My penny issues aside, is it better to store coins (loose or rolled) in boxes made of metal, cardboard, or plastic? I have albums for my best coins but from time to time have duplicates or the odd bank roll I want to save.
Edited by punman
12/27/2014 2:04 pm
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Valued Member
Canada
329 Posts |
depending what the metal box is made of or plated with, you may have a bi metal reaction going on. I would say minimum, get them out of the metal box, or wrap them in a cloth or bag to have them in that box.
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Pillar of the Community
United States
589 Posts |
Storing coins...
Plastic: the best, since it is inert (if you use the right types of plastic, of course)
Metal: coins stored in metal do stand up well over time (the Saddle Ridge Hoard comes to mind), but metal to metal contact plus a catalyst can cause irreversible chemical changes
Cardboard/Paper: Paper will eventually decompose, even when kept away from water, unless you control humidity and a number of other factors. If stored in paper, get acid-free archival quality paper.
Cloth/Fabric: If there's sulfur in the fabric, it will tone the coins (and can tone them quite nicely), other than that, cloth will also decompose over time (decades, centuries, etc., depending on storage conditions)
Lower quality coins can be stored safely in paper/cardboard for decades with no damage, but for keeping copper red, you need to prevent contact with air/elements/chemicals that will react with it.
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Pillar of the Community
Canada
535 Posts |
I have not thought much about the plastic shrink wrapped rolls. I have mint boxes of each cent from 2010 to 2012. That is 300 rolls. The boxes are just stacked in a closet. Makes me wonder if I should just leave them alone or change the way they are stored.
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Moderator
 Canada
10458 Posts |
All of the above information is useful... but pointless unless you control the humidity of the environment, and storage containers therein, that they are stored in.
Even third party grader holders, are not immune to poor air and humidity conditions. I use silica gel desiccant packs in my safety deposit box, and replace them monthly.
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Pillar of the Community
Canada
1823 Posts |
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I use silica gel desiccant packs in my safety deposit box, and replace them monthly.
I go to my bank every 5 months just to change my desiccant packs and never had any problems with my coins. |
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Pillar of the Community
Canada
1018 Posts |
I just got a safety deposit box never considered doing that, but I will now.
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Replies: 10 / Views: 1,984 |
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Posted 12/27/2014 10:27 am
