TShakudo fuchi with matching tsuba. This is a order in which I described the set because in my opinion fuchi is older, made by a better craftsman and with higher quality materials.
Fuchi is made of shakudo with nanako ground. Decorated with a bridge, wild geese and pine tree. Copper inlay was made to make trunk of the pine tree, silver inlay for one wild geese and "wooden" elements of the bridge. Other decorations are gilded. Tsuba is probably made with lower quality shakudo, instead of nanako ground there is Ishime-Ji. Copper inlay was made to make trunk of the pine tree, silver inlay for three wild geese and "wooden" elements on which fishnets are drying. Other decorations are gilded.
I think that both pieces where made by a different craftsman due to many reasons, but major one are waves on the river. The ones on the fuchi look much more natural, they are smaller and better carved. Waves on tsuba are much less elegant and do not give you a feeling of flowing water. This are my observations from seeing the piece in hand. I would make different ones based on photos alone.
Either way this is very interesting set to study craftsmanship.