idai (era) : Edo period, 18th century

Signed : Kishu Ju Sadanage or Teimei

Material : very well forged & fine iron plate with some fine sukashi / cut-out

with a rich & deep dark chocolate brown patina

Good workmanship with very nice details

Sizes : 7.5 cm x 7.4 mm

Thickness : 5.1 mm