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Next, let us a look at a fairly rare type of conversion. This book here. As I have explained earlier,this type of binding is called multi-section (tetsuyōsō). Now the book no longer has a cover, but it is a tetsuyōsō. When you leaf through it, nothing seems to be particularly odd or out of place. However, it is fairly large for a tetsuyōsō book, and if you look very carefully, I am not sure if you can see them properly, here on the margins you can see the marks where the binding holes once were.
Moreover, although you turn the pages by lifting them up from here, in this book the dirt from fingerprints is in this area, which tells us that that’s where the pages originally would have been turned. In other words, a book originally in fukurotoji binding was taken apart and the individual pages were pasted four at a time onto new sheets which were then used to convert the book to a tetsuyōsō. I think you can see how complicated the procedure is. As to why the conversion was done,
the answer is the same as for all book to scroll conversions: books bound in one of the less prestigious formats were converted to a more prestigious one in order to increase their value. Although there are quite a few of these fukurotoji to tetsuyōsō conversions around, in many cases the owners are not aware of it, and believe the tetsuyōsō to be the book’s original binding. This completes our discussion of rebinding and reformatting.


綴葉装 → 巻子装

方法 :本文料紙の表裏を二枚に相剥(あいはぎ)し、順番に貼り継いでから、末尾に軸をつけ、新たな表紙を付す。

Medieval commentary of the Tale of Genji 図1. 綴葉装から巻子装の例 源氏物語古註(末摘花) 〔南北朝〕写 一軸
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袋綴 → 巻子装 


Yakumo mishō 図2. 袋綴から巻子装の例 八雲御抄
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袋綴 → 綴葉装 


Sagara Tametsugu’s Renga sōshi 図3. 袋綴から綴葉装の例 〔相良為続連歌草子〕
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古書から読み解く日本の文化: 和本の世界

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