This chapter is more detailed part of Chapter 19. Please read Chapter 19 before this chapter.
The drawing below is the illustration from chapter 19. Compare this illustration and the photos underneath of it. It shows the similarity of the shape. Keep in mind this illustration is the shape of a very long sword that was shortened at a later time. At Nanboku-Cho time, swords smiths created 3, 4, 5 feet long swords. Later shortened to 2.5 feet or so.
From Sano Museum Catalogue “Reborn” Permission granted
“Chogi” from Sano Museum Catalogue (permission granted)
Characteristic of Chogi (長義）
Shape ——— Originally very long. Shortened to approximately around 2.5 feet.
Hamon ——–Wide showy tempered line. Basically Nioi, but Nie shows a lot. Sunagashi (砂流し) appears. Notare (wavy) mixed with Gunome. Sometimes Chogi’s created one pair of ear robe shape called Chogi’s earlobe shape midare.
Boshi ——— Irregular Midare and sharp turn back Ji–Hada ——- Itame ( a wood grain)
Aoe from Sano Museum Catalogue (Permission granted)
Aoe is pronounced “A” as apple, “o” as original, and “e” as edge. Aoe is a swordsmith from Bittchu province that is next to Bizen. Therefore the characteristic of the sword, Ko-Aoe, and Ko-Bizen are similar.
From middle Kamakura period to Nanboku-Cho period was the best time for Aoe group.
Characteristic of Aoe (青江)
Aoe sword has Aoe-Zori shape that is to curve a lot at the lower part. During Nanboku-Cho time, because of the Soshu-Den was the trendy style, even Bizen sword smiths did Nie. Yet, Bittchu stayed Nioi. The tempered area tends to be wide. Sakasa-Choji (means inverted or backward, see the illustration above) is the Aoe’s most notable characteristic. Also, Boshi often has pointed hamon. It is often said that if you see sakasa-choji, it should be either Aoe group or Katayama Ichimonji group. Sumitetu (澄鉄 black Jigane from the inside shows through) is also Aoe’s characteristic.