Menuki :
Mei (signature) : Mumei(unsigned) Waki Goto school.

Menuki1 Length : 3.63cm or 1.42 inches ×1.02cm or 0.40 inches ×0.76cm or 0.29inch
Menuki2 Length : 3.61cm or 1.42 inches ×0.95cm or 0.37 inches ×0.71cm or 0.27inch
Jidai(era) :Middle to late Edo period.
Special feature :On the fine syakudo plate, a Noshi and Yuzu(kind of orange) are engraved with gold color.
This pair of Menuki is very nice condition and also fantastic work.
AOI estimation paper.
In Kiri box.