Tanto for your expertise pls.

[vantique]

Hi folks, 

Got here a tanto for your expert comments. Blade is approximately 8.5.inches and 11.3/4 inches overall. Please let me know if this is authentic and antique. A possible  lead as to  its origin and school would be great, too.Thank you so very much. 

Vince

[Ray Singer]

The blade appears Shinshinto, late Edo period. Please avoid laying a bare blade down on a hard surface like this which will add additional abrasions that need to be removed the next time the sword is restored. 

[vantique]

Thank you for the input and good advice.