Menuki:
Mei (signature) : Mumei(Unsigned)　attributed as Kogoto.

Menuki 1 Length : 2.86 cm or 1.12 inches × 1.24 cm or 0.48 inches
Menuki 2 Length : 2.64 cm or 1.03 inches × 1.30 cm or 0.51 inches
Jidai(era) :Early Edo period.
Special feature:The Menuki is smaller sized fantastic syakudo menuki.
The item looks like Kogoto style Throb feeling horse.
The condition is perfect.

AOI estimation paper
In Kiri box.