Polyester (e.g., Mylar) is one of the best materials for storing  
notes.  Some archival catalogues carry some in a limited number of  
sizes.  Atlantic Protective Pouches  
(http://www.atlanticprotectivepouches.com/) are a good supplier.  They  
can also make custom holders.  For fragile notes I recommend putting  
them first in a light weight inner folder which is then slipped into  
the pocket.  The inner folder can be easily made using sheets of  
polyester & a bone folder.

Please note that PVC is a _resin_ not a plasticizer.  PVC is short for  
polyvinyl chloride or "vinyl" as it is commonly called.  It is  
availble in a plasticized & unplasticized form.  The plasticized form  
is most decidely unarchival as the plasticizer, a phthalate, leaches  
out over time & causes copper alloy coins to corrode & it is also an  
excellent solvent for a number of inks.  It is quite oily & can stain  
paper.  Unplasticized PVC looks a lot like Mylar.  Most conservators  
do not consider it to be "archival quality" due to the presence of  
chlorine in the chemical.  As such, I advise that its use be avoided  
particularly given that there are lots of safe options out there.  Any  
supplier should tell you what the enclosure is made from.  If they  
don't know then I suggest shopping elsewhere.

Susan Maltby, Conservator
Maltby & Associates Inc.
_Coin World_ Columnist - "Preserving Collectibles"
Adjunct Faculty, Museum Studies Programme/FIS
Univeristy of Toronto
416-921-2877

Quoting "Brunner, Lane" <[log in to unmask]>:

> Hello Beau-
>
> The best way to store the notes is to place them into individual
> inert/archival plastic sleeves. These sleeves can then be stored in
> archival safe boxes.
>
> Any full-service coin shop will carry "currency sleeves" in various
> sizes. Be sure you insist that they do not contain the plasticizer PVC
> (polyvinyl chloride). All archival safe currency sleeves are free of
> PVC.
>
> Congrats on your find!
>
> Lane
>
> ----------------
> Lane J. Brunner, Ph.D.
> Deputy Executive Director
> Museum, Library and Research Services
> American Numismatic Association
> 818 North Cascade Avenue
> Colorado Springs, CO  80903
> Tel: (719) 482-9872
> Fax: (719) 634-4085
>
> Discover the world of money at www.MONEY.org
>
>
>> -----Original Message-----
>> From: Museum discussion list [mailto:[log in to unmask]] On
>> Behalf Of George Harris
>> Sent: Monday, March 26, 2007 11:50 AM
>> To: [log in to unmask]
>> Subject: [MUSEUM-L] Paper money storage
>>
>> Hello,
>> I have come across a large number of paper bills/paper money ranging
> in
>> age from the 1770s to 1970s.  I am wondering what the best way to
> store
>> thes is.  Would a binder with protective plastic sleeves be
> acceptable?
>> Right now they are in non-acidfree envelopes and there are usually
> several
>> in each envelope.
>>
>> Thanks.
>> Beau Harris
>>
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