Hizen Nidai Masahiro (Second Generation) was the son of first generation Masahiro. He initially signed Masanaga.
This first sword by Nidai Masahiro has a great suguha hamon.

Note the sayagaki (writing on the scabbard)

Great hada and hamon

Sorry about the dust - super boshi

Special order Nidai Masahiro with unusual gunome hamon

Special order gunome hamon

Tokubetsu Hozon NBTHK papers

Hishu Kawachi no Kami Masahiro

Authentication papers by Kothen Kajihara rating Jyo Jyo Saku (very good)

Gunome hamon and nice boshi

Second Generation Masahiro with choji hamon

Choji hamon shows strong utsuri.

Good boshi that goes with the choji hamon

Hizen no Kuni Kawachi no Kami Fujiwara Masahiro