Hidden signature ?

[Kurikata]

Hi,

 

I have this mino goto tsuba and looking closer at the inlays I have detected what could be considered as some kanji. Is it in my dreams or can it be a kind of hidden signature ? 

 

Thank you for your views.

[Gunome]

Hello Bruno,

 

First one could be this one 桐

I have more difficulties to find the second one

[SteveM]

桐 and 寿, but I don't know what they represent. Its not a name. 寿 (sumi) means long life, longevity, which you often see on gifts or motifs in weddings, etc. 桐 (kiri) is paulownia. I don't know its significance here. And I don't know why these two kanji are on the fan shapes.