Thick and heavy blade, shortened two times but still massive in its appearance. It seems to be made in Yamashiro|Bizen Tradition and during Sengoku times it was popular to use Uchigatana swords of length around 60-65 cm, so it was most likely shortened by that period.
The following opinion is subject to be changed made at present day:

Hamon: Chu-Suguha
Yasurime: Osuriage, maybe not made by the smith: Ura: Kiri, Omote: Sujikai
Suriage: no Yakiba visible
Habaki: Shakudo and fold foil: motive in Katakiri-bori of a cloud dragon – laquer residue Urushiu (maybe from the former saya) Hada: Itame mixed with Mokume
Boshi: Ko-Marusagari, long Kaeri  Yamashiro  late Muromachi, Sengoku Period
Hataraki: subtle present sunagashi
Nakagojiri: Kiri (popular for suriage Uchigatana)
Flaws: minor flaws in polish along cutting edge

School estimation: requires further research, probably Mihara School,...