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I've always wondered but never thought to ask: what are these abstract paper patterns on some Jewish seforim? As the two books in bottom center of example photo: http://1.bp.blogspot.com/-jbhcKUqaVsA/VpVGyNLtKJI/AAAAAAAADmY/OP3pRyfWq2g/s1600/19.jpg

It sort of looks like camoflouge, but in red hues. Yes I know it's almost Purim, but don't giggle. I'm seriously wondering this.

You will find this most often on the really "serious" seforim that are all-Hebrew, come from the ultra orthodox people in Israel. Kaftor siddurim have them for example.

Do they mean anything? (Like, is this sort of analogous to the "barcode" of the pre-WWII tallits?) Or is this just a way to make the books appear mehudar (beautified, superior)? To me, it's always just seemed kind of...odd. I don't understand what it has ever done to beautify or enhance or elevate the sefer it is found on.

Kol Tuv

marked as duplicate by Double AA Feb 27 '18 at 22:36

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