These types of tanto were popular in the Edo and Meiji era. This specific example probably dates from the later.
The dagger is not a showroom piece, and was made simply to be used as a light concealed weapon. The blade is still fairly sharp, with traces of sharpening and very little surface discoloration. The habaki has a very even green patina.
The fittings are made of wood and lacquer. The lacquer finish is gone in various places, but this could be restored by a professional for a very reasonable price. One of the brass eyelets is also missing. The whole assembly is very solid.
A very original piece for the collector of Japanese weapons.
Please contact me (Maxdchouinard@gmail.com) if you are interested or have any questions.