I've received books in packages where there are two pieces of cardboard wrapper around the book. One piece of cardboard wraps around the book from top to bottom and the other piece wraps around from side to side. But I don't know a name for that type of cardboard wrapper.

I did find a wrapper for cosmetic items called a cross wrap portfolio. In the ad that I found that the part of the package that serves as the ledges are called flaps. These flaps turn up and over the item inserted in the wrapper like a ledge. Your "trottoirs"/ledges may not be curved in your package but I think that flaps will still work.

As for GC20, that appears to be a part number for the material the portfolio is made of. I don't know if it for cardboard, plastic, or a laminate.


See the web sites for pictures.
Cross Wrap Portfolio
Cross wrap style portfolio, 1/2" capacity, 3-1/4" curved inner **flaps**, full 9-1/8" panel on left with one velcoin, ships open flat, 9-1/8"x11-1/8"x1/2", 20 pt C-1-S
http://www.vulcan-online.com/productDetail.aspx?id=476_01ope...

Portfolios
• Two Styles, Flat and Cross Wrap.
• Flat styles are 12 pt C-1-S
• Cross Wrap styles are 20 pt C-1-S
• Gloss film lamination one side
• 4 Color Offset printing
http://www.folders-and-more.com/Prod_Portfolio.html

http://www.rosepkg.com/pdffiles/Cat_Pg12_web.pdf

--------------------------------------------------
Note added at 20 hrs (2008-08-29 12:55:59 GMT) Post-grading
--------------------------------------------------

You're welcome, Lucy-Jane, and thank you for the info about cruciform mailers :-)