Jidai (era) : Edo period, mid /late 17th century
School : Akasaka
3 rd / Third generation Akasaka Masatora (from my collection)
He die in 1707
Material : well forged & carved fine thick & strong dense fine iron plate with fine sukashi / cut-out
Rich & deep lustrous dark black /brown patina
Good workmanship with fine details
Sizes : 7.4 cm x 7.0 cm x 6.8 mm thick