Don't want to be a party pooper, and with all due respect to the tsuba and especially the members of this discussion... but I don't think the quality of the tsuba is that good. It is a good honest tsuba but the metal, the theme the workmanship, all to me suggest a mediocre Edo piece.
Here are my opinions:
The metal seems of a good colour but it lacks any "activity". It is basically boring. Maybe it is easy to carve as there are no hard lumpy bits that gives the plate depth.
It took me a while to find the critters face and to me it doesn't look scary, it looks stoned....
The bottom of the seppa dai back and front are badly cut.
The rim looks unfinished and I doubt a rim cover was fitted as the tsuba is too thick and the rim would have problems adhesing to the carving around the edge.
The mei is nicely cut I suppose and the only eye catching detail of the tsuba is the way that "puff the magic dragon" is worked into the hitsu ana.
Good quality stands out. It can be hard to detect at the beginning but when you see and remember lots of tsuba and then start seeing the same sort of thing again, the brain starts to naturally and intuitive notice quality and you realise the piece has a little something extra AKA quality.
Just my thoughts. Peace, love, respect and by all means