Is there a knot tying event in your area?Please let us know about it.
Three years ago, I found some reference to 2nd (https://bbs.zhongguojie.org/thread-226686-1-1.html) ...Are Hubo's hemispherical knot (http://bbs.zhongguojie.org/thread-62160-1-1.html) Rattan knots?