Coin Storage

Discussion in 'US Coins Forum' started by dkwnyc, Jul 9, 2007.

  1. Just Carl

    Just Carl Numismatist

    WHAT? And that is the only reason I've been buying them.
    I've got almost all my best coins in Whitman Classic Albums. 96 at last count. Most of the better ones are wrapped in plastic freezer type zip lock bags. I've been doing that as long as there have been plastic bags around. So far no problems with any coins changing except the ones I change myself. Been doing that for many, many, many years now.
     
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  3. dreamer94

    dreamer94 Coin Collector

    For what it's worth, I have found that these containers are not air tight either. I placed silica gel canisters in them and even without opening them at all, the indicator changed in a few weeks indicating that humidity was getting in .

    Tupperware would probably be air tight, but I don't think they make them big enough to store things like albums or proof set boxes.
     
  4. CentDime

    CentDime Coin Hoarder

    One time while looking at one of the mint coins in its capsule I noticed when I breathed it went right through onto the coin so they are not air tight by any means.
     
  5. rlm's cents

    rlm's cents Numismatist

    I give. Just what were you "breathing" that you could tell (see?) that it got onto the coin?
     
  6. grizz

    grizz numismatist

    he's probably referring to condensation............that's bad stuff for coins. the only way that you could protect coins from air is if you pour molten glass over them or clear epoxy glue. outside of that the best thing is to store them away from extreme temp changes and moisture. i put mine in kointainers and then into 2x2's then into albums. been doing this for many many years and never had a problem.

    grizz
     
  7. dreamer94

    dreamer94 Coin Collector

    Does anyone here have experience with the AirTite albums? They hold AirTite capsules. I'm trying them out with the presidential dollars. They have the advantage that if you use direct-fit capsules, you can see the edge lettering (assuming it's there, of course).
     
  8. cc51

    cc51 Senior Member

    is it ok to store silver coins in a tin can?
     
  9. Treashunt

    Treashunt The Other Frank


    ? probably, but why would you want to?
    Unless you are storing it next to the flour to fool the burglars.
     
  10. swick

    swick New Member

    Did you "burp" the RubberMaid containers after you put the coins into them?

    swick
     
  11. Magman

    Magman U.S. Money Collector


    :cool:

    you wont regret it!
    except in the summer, when your coins melt.
     
  12. Bacchus

    Bacchus Coin Duffer

    :mouth:

    =============================

    Maybe "air tight" doesn't mean "air proof".
     
  13. Delmer

    Delmer New Member

    As the temperature changes, the air inside the containers constantly moves in and out.. and if the humidity changes around the container, the chance of condensation is certainly there.

    Seems to me that storage in a cool dry place is in order...

    The temperature a few feet below the frostline does not change but a half degree maybe.. EVER. You've thought about it.. now go dig that hole! :)

    How about inside a coffin, purged with argon gas or something?

    Heres another thought.. perhaps dip the slabs into wax? Get the slab good and warmed up first so the air inside can never push the wax out due to expansion. There will be a vacuum inside when it cools to storage temperature. Wait.. maybe the WAX will have an effect. This is tough!
     
  14. dreamer94

    dreamer94 Coin Collector

    I've been to Phoenix twice during the past year and just returned from southern Utah, where it was routinely 105 during the day.
    I don't think I could stand it.
     
  15. dreamer94

    dreamer94 Coin Collector

    Naw, because they throw up on my shoulder when I do that.
     
  16. GDJMSP

    GDJMSP Numismatist Moderator


    Well it aint any better in the north - trust me. Over 100 in the summer and below 0 in the winter ! Never thought I could stand it either - but I have for 25 years ;)

    But to answer your earlier question, no AirTite holders are not airtight - or watertight. I've tested them. As I said, no coin holder or slab is. And neither is any Rubbermaid or Tupperware cointainer nor a Ziplock bag. But all of them do help to reduce the air movement and keep it to a minimum. By using these holders with silica gel packs you can reduce harmful humidity by 90% or more. And that's what you want to do. While there is no perfect system that is readily available - you do want to get as close as you can.
     
  17. Leadfoot

    Leadfoot there is no spoon

    Great advice.

    Another tidbit may be useful... Just as important as low humidity is tempature stability when storing mint-made air tight canisters or airtites (or slabs for that matter). Changes in temperature will speed gas exchange and lead to spotting/toning. So you should try and keep your coins in a place where the temperature is as stable as possible, particularly if you cannot or do not control the humidity of this area.

    Hope this helps, and all IMHO...Mike
     
  18. Magman

    Magman U.S. Money Collector


    haha yup.
    Its been 110º lately.
    and the week of July 4th was 114º (and plus or minus a few degrees)
     
  19. coleguy

    coleguy Coin Collector

    128 degrees here for six days straight! Coins havn't melted down....yet!!
    Guy~
     
  20. Treashunt

    Treashunt The Other Frank


    Is that a typo?

    128 degrees?

    I thought that Vegas set the record at 118?
     
  21. elaine 1970

    elaine 1970 material girl

    this topic is really hard. how to storage them. i just hope that God will help me. either my coins will be stay brilliant and shining forever. or tone becoming nice, rainbow color.
     
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