Silver Kozuka carved in kebori ("hair carving") with a ukiyo-e style half-length figure of a beautiful woman (possibly a courtesan) dressed in a splendid kimono and hair ornament (kanzashi). Signed on the back: Koreyasu/Zetai + kaō (是休「花押」)  - transcribed by Markus Sesko. Size: 96.8 mm (H) x 14.9 mm (W). Edo period, early 19th century. I managed so far to find the only mention of Koreyasu at Japanese sword-mounts. A descriptive catalogue of the collection of J. C. Hawkshaw, Esq., M.A., of Hollycombe, Liphook. Complied and illustrated by Henri L. Joly. London, 1910 [LIB-1439 in this collection], page 204: 2623. — F./v., nigurome, chased in relief and inlaid with Omori Hikoshichi (large faces). Signed : Koreyasu of Yedo. xix. 2624. — F.K., nigurome, chased and inlaid in relief with Omori Hikoshichi and the witch. Signed : Shinriusha Koreyasu. No pictures of items or signature provided.