Sword and Engraving by Gassan Sadatoshi : r/SWORDS
Japanese Sword - Koto Gassan Katana
Late Edo period Katana signed by Gassan Sadayoshi for sale | Samurai Museum Shop
A Gassan Katana
Katana - Steel - Macnificent Japanese Katana Sword National - Catawiki
ujwa244 - A Gassan Sadakazu Wakizashi Masterpiece (for reference, this sword has been sold) - YouTube
Japanese Sword Museum Thailand - Gassan Sadakatsu Tanto in Shirasaya with double box. Signature : Naniwa Ju Gassan Sadakatsu Kinsaku (kao) Showa 12Nen 5 Gatsu Kichijiysu. Explanation: This Tanto was made by