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Pillar of the Community
United States
593 Posts |
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People get too weird about storage of coins. This isn't about getting crazy about storage, but finding a way to be consistent. I collect mint and proof sets from 1968 to present, but the '71 and '72 P&D Ikes were never packaged as sealed uncirculated coins. It would be nice to store them in the same mint set albums as everything else. Fortunately the 1999 SBA P&D dollars WERE packaged as sealed uncirculated coins, as was the 1996 W dime. I bought the 1982 and 1983 P&D Souvenir Sets, but I can see someone wanting to seal their own sets for a lot less. Also, the '66 and '67 Special Mint Sets don't fit in any album. It might be nice to create your own set that is the same size and shape as your other mint sets. I also collect used pennies and nickels before 1959. Those are stored in Dansco albums. I have no plans to "seal" any of those coins or the albums. I only want to seal the Ikes so the presentation is CONSISTENT with the other mint uncirculated coins I have. Edited by larsdog
04/27/2012 11:22 pm
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Pillar of the Community
Australia
1006 Posts |
Great idea on the storage although be very very careful with the pvc sleeves because I have heard it decomposes and creates a very unattractive green patina on coins.
Personally I keep my coins in PVC free album sleeves but my best coins are in 2x2 holders in album sleeves.
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Pillar of the Community
United States
1554 Posts |
Hmmm, quite the dilemma. I think larsdog and the others who posted above have some great ideas, or, maybe the ANA could give you some advice. Good luck. |
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Pillar of the Community
United States
593 Posts |
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Great idea on the storage although be very very careful with the pvc sleeves because I have heard it decomposes and creates a very unattractive green patina on coins. The saflips I bought are made of PET - no PVC. For now I only plan to seal the '71 and '72 Ikes so they can be stored with all my other mint sets, but I may decide to create my own '66 and '67 mint sets. The '65 SMS will fit in my mint set album, but the '66 and '67 SMS slabs don't fit in anything. Eagle (the album manufacturer) told me how to modify a page for displaying certified coins to hold the odd shaped SMS sets, and I bought one of the pages, so it probably depends on how nice the Ikes turn out as to what I do about '66 and '67. |
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Valued Member
United States
470 Posts |
I have been storing coins in foodsaver bags for the last 10 years. I use it mostly for junk silver. I seal up 10/20/50 dollar face bags and then seal and suck all the air out of the bags. For my junk silver, I put them at the bottom of the man made Koi pond at my parents house to prevent theft. I've got about 10-12 grand underwater now. It's all dry and pretty just like the day it went in the bag.
Edited by Andrew289
05/01/2012 08:54 am
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Valued Member
United States
172 Posts |
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As far as I can tell, all the various coin storage systems out there have some sort of problem associated with them....nothing seems to be ideal. That's an understatement. The fancier holders that one would expect to be sealed, like Air-Tites and Kointains, aren't completely air tight and have practical problems with sizing, labeling, and cost. Slabs are gross and expensive and they aren't air tight either. Anything that uses staples is a disaster since staples rust and gouge. I've tried many different types of holders and found that I can tolerate the limitations of Saflips. I share your concerns about air tight storage and am aware of folks who use impact sealers with Saflips. I've considered buying one several times. My only concern is that the heat used to seal the plastic will cause the plastic to outgas as it's being sealed. If those gasses were harmful, I wouldn't want to seal them in with the coin. Are there any chemists out there who could comment on how harmful outgassing Mylar would be? |
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Bedrock of the Community
United States
20753 Posts |
If you want to protect a coin or coins for a long, long time, the best and full proof method is to go to a hobby store, purchase some liquid Plastic, make things like this.  I did this in the late 50's and every coin looks exactly the way it did back then. And they will be like this possibly forever. |
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Pillar of the Community
United States
593 Posts |
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I share your concerns about air tight storage and am aware of folks who use impact sealers with Saflips. I've considered buying one several times. My only concern is that the heat used to seal the plastic will cause the plastic to outgas as it's being sealed. If those gasses were harmful, I wouldn't want to seal them in with the coin. Are there any chemists out there who could comment on how harmful outgassing Mylar would be? That's a good question. I just got my impulse sealer and tried it out last night. When I get the Ikes I'm looking for I plan to put it to use, but outgassing is a very good question. I found a detailed discussion of storage methods on CoinTalk that included talk of sealing saflips, but the conclusion was "why bother" instead of any quantitative data on outgassing. |
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Pillar of the Community
Canada
693 Posts |
2x2s are great for small coins. I find that for large/thick coins a 2x2 doesn't seal as well - unless you put 8 staples in it. For crown size coins, there's not a lot of cardboard on the cardboard 2x2. I use a heat sealer on 2" and 2½" mylar flips for big coins and medals. There is an added benefit of having the other side of the flip to insert a detailed write-up of the coin. I've wondered about the off-gassing issue, but as DBM mentioned ICCS has been doing this for their packaging for many years. I haven't seen any ill effects on their coins, so long as the package is still intact.
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Pillar of the Community
United States
593 Posts |
Quote:
I use a heat sealer on 2" and 2½" mylar flips for big coins and medals. Yes, I'm using the 2-1/2" flips for the '71 and '72 P & D Ikes that weren't in the mint sets Quote:
There is an added benefit of having the other side of the flip to insert a detailed write-up of the coin. Another option is to put a mint token in the other side. There SHOULD be a ton of them floating around from broken up sets, but they were surprisingly pricey on ebay when I looked. I was lucky enough to have exactly 2 spare P sets and 2 spare D sets that I could cut the tokens out of. Quote:
I've wondered about the off-gassing issue, but as DBM mentioned ICCS has been doing this for their packaging for many years. I haven't seen any ill effects on their coins, so long as the package is still intact. I was also thinking that the U.S. Mint probably uses SOME heat when sealing their sets (we know they use quite a bit of pressure if the sealers can mark up the faces of coins as much as illustrated in a different thread). |
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Pillar of the Community
Canada
1554 Posts |
 Isn't that what third party (slabbed coins) grading is all about? Glenn  Edited by glenzy1
05/11/2012 6:27 pm
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Pillar of the Community
United States
593 Posts |
glenzy1
The original poster was talking about sealing coins in general, but I was asking about the concept of sealing a few coins so they fit with my collection of sealed mint sets. '71 and '72 P & D Ikes are examples of coins missing from a collection of mint sets. Those COULD be stored in an album or could be slabbed, but it would be nice to store them in the same album as the mint sets.
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Pillar of the Community
United States
593 Posts |
Just got my first Ike. The 2.5 x 2.5 saflip worked perfectly!
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Moderator
 United States
188770 Posts |
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Just got my first Ike. Very nice!  |
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Pillar of the Community
United States
593 Posts |
All 4 Ikes sealed and placed in album! It worked perfectly!
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Replies: 27 / Views: 10,489 |
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First Page
Posted 04/28/2012 07:03 am
