Japanese (samurai) <i>Gyorin kozane</i> (fish scale armor) in the form of a <i>shikoro</i> (neck guard) of a <i>kabuto</i> (helmet).
<a href="//commons.wikimedia.org/wiki/User:Samuraiantiqueworld" class="mw-redirect" title="User:Samuraiantiqueworld">Samuraiantiqueworld</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>