Ressei menpo, Myōchin school mask for samurai armor

Mid Edo period (1615 – 1867)  18^th century

A good russet embossed iron mask of me no shita men (half face) type.

Even if the mask in unsigned, the type and the features suggest a smith from the Myochin school.

On this page is a comprehensive glossary of common terms related to samurai armor.