3D extrapolation created after an illustration introducing the «Q: LOOP-CONTINUE» chapter from the «[Chinese Lattice Designs](https://store.doverpublications.com/0486230961.html)»
reference book by Daniel Sheets Dye (p. [240](https://books.google.fr/books?id=SsZLhrgEwUwC&pg=PA240)).
Caption from the author p. 25:
> *Q. Loop-Continue* 萬不斷 or Endless Loop.
> This is a variation of [the preceding plate](https://skfb.ly/6YGCn); instead of a continued broken-wave line, it is looped. The resulting effects are distinctive.
Reference picture can also be seen here:
[![](https://web.archive.org/web/20210204121352im_/http://teacherlink.ed.usu.edu/yetcres/clipart/MasterClipsDOV/Symbols/Designs2/thumbnails/CLD000BE.jpg)](https://web.archive.org/web/20210204121351/http://teacherlink.ed.usu.edu/yetcres/clipart/MasterClipsDOV/Symbols/Designs2/index_7.htm)