The following layout shows the main (NOT all) "Sugata" (shape) changes of the japanese sword with period and lenght (in shaku, 1 shaku = 30.3022 cm or 11.93 inches) from right to left, first line first. Obviously an infinite number of possible mix are found, but these are | The following layout shows the main (NOT all) "Sugata" (shape) changes of the japanese sword with period and lenght (in shaku, 1 shaku = 30.3022 cm or 11.93 inches) from right to left, first line first. Obviously an infinite number of possible mix are found, but these are |