Shimada Yoshisuke Koto Wakizashi with NTHK NPO Certificate, circa 1555- 1558
Nidai Hatakeda Yoshisuke Wakizashi Attributed to 2nd generation Shimada Yoshisuke from Suruga province ubu shobu zukuri with iori mune forged in a very dense itame hada hamon is chu togari gunome midare with muneyaki boshi is midare kome with long kaeri,made circa the koji era 1555-1558,this blade has awonderfull sori and is very well balanced in hand, Nagasa is 53.3 cm mounted in an excellent koshirae with sharkskin saya, menuki are shakudo with motif of (Daikoku and Ebisu Gods of wealth), Same tsuka with large nodules/ Oya same, Iron handachi style kashira and kojiri , fuchi is highly detailed with motif of mounted Samurai overall this is an excellent koto wakizashi.
The Shimada school thrived in Shimada, Suruga Province, from the middle of the Muromachi Period until the Edo period, and had quite a reputation in the Sue-Koto. It was founded by the first generation Yoshisuke (aka "Gisuke") circa 1450, who was active around the Kosei Era (1455-1456). Some records state that the first generation Yoshisuke was Soshu Tomishi, a student of Masamune's. There is however no truth in this, although it does indicate the high esteem in which Yoshisuke's blades were held at the time. In fact Yoshisuke had learned the Bizen tradition from Iyetsugu. Subsequent generations of the Shimada school used the smith name of Yoshisuke until the the Keicho era in the Edo Period. The kanji 'suke' appears in the names of the mainline smiths (e.g Sukemune, Hirosuke, Motosuke).
The second generation Yoshisuke was invited to move to the neighbouring Sagami Province by the Hojo clan. He worked at Odawara, hence his alternative name of Odawara Soshu Yoshisuke. The second generation Yoshisuke worked in different styles, but seemed to have preferred the Mino Den.
The second generation's move to Odawara is probably the cause of the close association between the Shimada group and the Odawara Soshu. The Odawara Soshu are the representatives smiths of Soshu-den at the end of the Muromachi period. This association took the form of teacher-pupil relationships, marriages and technical exchanges.
It is thought that the third generation Yoshisuke initially signed himself Teruyoshi. A reference mentions he that learned Bizen-style forging techniques from the father and son team of Iyetoshi and Iyetsugu. The swords of third generation Yoshisuke are rated Jo-saku and similar to those of the second generation Yoshisuke in their unique style of blending the evolving Soshu tradition with the Bizen tradition, such as a Mino/Sengo hako-midare ba. Muramasa was a profound influence on contemporary swordmaking and hako-midare was one of his hamons. The third generation's blades are, however, differentiated from those of the second generation by his wider blades. The third generation Yoshisuke went on to teach Hirosuke, one of the most skilful smiths of the Shimada school, and one of its representative smiths.
The fourth generation, and some later Shimada smiths, were retained by the Takeda family of Kai Province. The Takeda family were amongst the most powerful warlords of the Sengoku Period. The fourth generation also learned the Bizen style from Iyetoshi and his son Iyetsugu.