On this site, I've considered and posted how to fold "連鶴/Renzuru" while referencing diagrams in the book which is “秘伝千羽鶴折形/Hiden-Senbazuru-Orikata”.
The book was published in 1797.
Renzuru means connected-cranes which are made of only one paper without glue and tape.
I've been translating this site into English from Japanese little by little.
