笛巻塗 Fuemakinuri / Flute Wrap Lacquer

What is Fuemakinuri in Japanese Katana terminology?

This is a pattern applied in stages, used for decorations such as scabbards (Saya). It is so named because it resembles the decoration of bamboo flutes. Mainly, a method is adopted where a step is given in the circumferential direction at a certain width and interval, and it is divided into red and black.