Hi,
yes looks like early Shinto, maybe Kanei because of the longer Kissaki. Hamon is hard to see on the photos, Hada looks nice. Mino... a lot of smith from Mino moved to different part of the country and established new schools. So hard to say which one.
Maybe somebody else with more experience can help. Otherwise i can recommend you some books.
bye
Oli
you schould also make some photos of the boshi, mabe this helps.
Where are some nice books in english for shinshinto: shinshinto-shi and shinto/shinshinto kantei both from Markus Sesko.
i am not a expert, but i guess Osaka Shinshinto ( of course not the Gassan Group). There was a smith:
MASAYOSHI (正義), Kaei (嘉永, 1848-1854), Settsu – “Ōsaka-jū Kuroda Masayoshi” (大坂住黒田正義),
“Masayoshi” (正義), real name Kuroda Sukeichirō (黒田助一郎), student of Ozaki Masataka (正隆), he also worked in
Harima
Question is, is this Osaka yakidashi?
There are a lot of smiths with the name Masayoshi in Sesko Book about Japanese sword-smiths. I think it also can be gendai because of the short signature, but then it should be a little bit longer.
Nice sword, thanks for the photos.