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A Guide to
Preservation
Enclosures
Folger Enclosure with
Clear Spine
This kind of enclosure is made of 20-pt acid-free and lignin-free archival cardstock where the spine is made of polyester film (Mylar). It has an envelope style flap that tucks into the body of the box on the side.
When do we use this type of enclosure?
It is especially suitable for books that have information on the spine, to facilitate browsing. Thickness can various from 2 to 6cm.
* Fold the bottom flap first when closing the enclosure.
See the short video below for handling instruction.
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