-, 21st Session — Designated April 23, 2010
, : Chōgi (長義)
Measurements 78.4 cm, 1.95 cm, 3.2 cm, 2.65 cm, 5.2 cm, 22.9 cm, almost none
Description Keijō: , ; the is distinctly wide, with little apparent difference between base and tip widths; the is narrow relative to the blade width; is rather thick; the is somewhat deep; . : with ; forms thickly; the texture is somewhat subdued; appear; mixed with ; stands out. : based on a relaxed, broad , mixed with , , , and pointed elements; and enter well; mixed with ; attaches, with places tending toward ; and -like effects appear frequently; and occur; the is bright. : , strongly , becoming -like. : on both sides, carved as kaki-nagashi. : with ; are ; two ; unsigned.
Artisan Province Chōgi (備前国長船長義)
Era period
Explanation Chōgi is, according to one theory, transmitted as a descendant of Sanenaga, and among the many smiths of the period—collectively referred to as “Sōden-Bizen”—he is a swordsmith who, together with Kanemitsu, demonstrates outstanding technical skill. Extant dated works range from Jōwa through Kōryaku. His style may be broadly divided into two tendencies: works in which predominates, and works in which the of both and is strong. In particular, examples of the latter type emphasize the tradition even more strongly than those of Kanemitsu; for this reason, it has long been said that “among smiths, the one most unlike is Chōgi.” His often displays an individuality in which the irregularities and variation are even more conspicuous than in Kanemitsu, and his forging likewise shows laid with thick and interwoven with .
This , though greatly shortened, still retains considerable length. Its is notably wide, the difference between base and tip widths is not particularly evident, the blade retains ample (robust “meat” in the cross-section), and it culminates in an , presenting a bold and magnificent (overall shape). The period character of the height of the era is strongly manifested in its , and it possesses truly imposing presence. The forging shows standing , with thickly adhering intermingled with ; is prominent. The is large and turbulent with , becoming lively and bustling through abundant activities both within the tempered area and along its boundary; and the similarly turns in as and is vigorously . Overall, it exhibits a boldly executed and forceful workmanship, fully persuasive of its quality as an article suited to a great lord’s equipment. It is, precisely, an exceptionally fine work decisively attributable to Chōgi.
This blade was transmitted in the Satake family of Akita and bears the sobriquet (gō) “Hachimonji Chōgi.” As to the origin of this name: it is said that in Eiroku 10 (1567), when Hōjō Ujimasa of Odawara attacked Tagaya Masatsune, lord of Shimotsuma Castle in Hitachi Province, Satake Yoshishige—who went to war as reinforcement on Masatsune’s side—struck down an enemy mounted warrior with this sword in a single blow, cleaving the head together with the helmet; the severed portions fell to the left and right of the horse in the shape of the character “八” (“eight”), and thus the sword was named (Nihontō Daihyakka Jiten).



































