Hello everyone,
I recently acquired this katana in a local brocante (flea market) in Belgium. I believe it to be authentic and I'm seeking help identifying the signature (mei), the period, and the possible school or smith behind the blade and other information.
Here’s what I’ve been able to gather so far (please note: all measurements were taken approximately using a simple measuring tape – they are not precise to the millimeter):
Mei: 横山上野~ (~=?)
Nagasa: +-66.5 cm
Sori: +-2.0 cm
Kissaki: +-3.2 cm
Motohaba / Sakihaba (estimated): +-3.1 cm / +-2.4 cm
Kasane: +-6 mm at base, +-3 mm at tip
Nakago: +-20.5 cm, unaltered, with natural patina
Weight of blade (bare): 841 g
Koshirae: complete – samegawa in two side panels, traditional black ito wrap, iron tsuba with floral motif, saya lacquered black with a painted plum blossom design.
The hamon appears genuine and is visible under light, but the polish is old. The boshi is present but not very defined. No visible flaws or hagire. The blade feels light and well-balanced in hand.
I would be grateful for any help with:
Confirming the mei and smith
Estimating the period
Value potential
Any red flags I may have missed
I can provide better photos of the mei, hada, hamon and koshirae upon request.
Thank you very much in advance for your time and expertise.
I'm take all information.
Best regards,
AK
