Shakudo Tsuba done in a motif of Sakura or Cherry Blossoms on Nanako.
The gold highlighted blossoms are positioned with the blossoms draping over the mimi against a field of nanako. The Nanako is the finest and most symmetrical I have ever seen. I suspect this is Kaga Goto work.
1.05cm(2.625") x 0.9cm(2.25")