where to buy oversized cel books

myself for some of my cels (with background) i m using cardboard frameworks, and i I put them in a box vertically to prevent the weight which damaged the cels.

http://www.art-georges.fr/SITE_FR/ENCADREMENT_GLOBAL/pages_encadrement_html/fabrication_CF2.html

I want to say I found an oversized cel book (A3) at Yodobashi in Umeda Osaka on the 2nd floor. Still I need to buy cel bags both regular and oversized...

Bags in all sizes that are appropriate for cels, can be found at www.bagsunlimited.com

For books I highly recommend using the Itoya binders as the pages are stiffer and you can store them upright or hang them using hangers so no pressure is put on the paint.

You can find them on Amazon or any art supply store online or retail. Online is usually cheaper though! ^_~

You can buy cel bags from the same place, Noriko's. Good luck.