Signature: Mumei
Year Made: Shinto
Forging Pattern: Can't see the forging pattern because of surface rust
Tempering Pattern: Possibly Notari
Dimensions:   Nagasa:  16 3/32", Nakago:  4 7/16", Mihaba:  1 3/16", Kasane:  3/16", Sori:  1/2"  
Mountings:  There are no mountings with this blade
Overall Condition: The blade apperse to be solid but with a lot of surface rust.  The rust will easily come out with a good polish as can be seen where someone started to open a window.  There does not appear to be any kizu.  The is a one piece copper habaki that is not in good condition and needs to be replaced.