Sword identification

Hello there, I have an idea I've posted this before but can't find it on this site.
I am trying to identify the age, swordsmith, period of a Japanese sword I have. Please see the photo's and I think I have covered all the useful elements to enable an ID to be made by someone who knows what they're talking about. I am also trying to establish a value as well with a view selling it. Any help I can get will be welcome. Best wishes and stay safe.

five_characters.jpg106.82 KB
two_characters.jpg128.28 KB
samurai_tang.jpg104.57 KB
blade_length.jpg132.66 KB
scabbard_hilt.jpg120.31 KB
blade.jpg51.43 KB
blade_length.jpg132.66 KB
grip.jpg142.4 KB