I am starting my topic in the same manner as at http://www.militaria.co.za/nmb/topic/19632-a-lot-of-questions-on-a-yamakichibei-tsuba/: I recently acquired two tsuba on eBay from a decent seller, allegedly made by some 'Yamakichubei', and bearing a signature: yama (山) kichi (吉). Then, I bought another one, with the same yama (山) kichi (吉) signature and similar design, but decorated with gold inlay of paulownia with tendrils.     Size of the first tsuba: 85.2 x 79.1 x 3.5 mm (seppa-dai)