Previous answer is
　　Mumei(Shinshinto Aizu Michinaga)　

special feature: It is said that Aizu Michinaga is old name of Miyoshi Nagamichi but this sword this sword was made by swordsmith active in Edo period.

==============================================
Appraisal Quiz #602 (August 15th, 2020)
Who made this sword do you think ?
==============================================

Blade length : 75.0 cm or 29.52 inches.
Sori : 2.4cm or 0.94 inches.
Mekugi : 1
Width at the hamachi : 3.14cm or 1.23 inches.
Width at the Kissaki : 1.95cm or 0.76 inches.
Kasane : 0.7cm or 0.27 inches.
The weight of the sword 605 grams.
Shape : Long blade with regular thickness. Bo-hi are engraved on bot side. Deep Sori. Kissaki is Ikubi style.
Jigane :Koitamehada well grained. Jinie attached, there is pale Utsuri.
Hamon :Konie-deki Suguga with Ko-ashi. Habuchi is soft. Boshi is Sansaku style Notare turn.

Hints. ※The picture will be enlarged

================================================

Answer will be posted at next Appraisal Quiz.

================================================

(Please acknowledge not replying to mail about Appraisal Quiz by our convenience.)