Matching Fuchi-Kashira set with gilted three Kiri (paulownia) crest (Gosan no Kiri).
Alloy: Shakudo (mixture of copper 3% to 6% gold)
Edo period: 1603-1868)
Size: 4 cm X 2.5 cm (Fuchi),  3.4 cm X 1.5 cm (Kashira)
Signed on Fuchi: Masayoshi
Note: Fuchi Kashira are one of the components of a mounted Japanese sword.