Hello and good day to all. I have recently purchased a nice katana and am having trouble with the tsuba? i have looked some resource books i have as well as crounched quite a bit of time on the net trying to find a similar one, no luck! im very green when it comes to tsubas and cant even tell if this is authentic or not? your comments on age,authenticity,ect.. is very much appreciated, thank you in advance,Jeremy