This Japanese classic is for protection, not theater or masquerade. I posted a used Samurai mask on May 8, 2018, but this one is in perfect condition. Both would have been worn with a helmet and a whole suit of armor. Here is some additional background from mylearning.org…
The Samurai were warrior-nobles in Japanese society, with a strong honour code called bushido. The name ‘Samurai’ means ‘ones who serve’. Before the 1550s the Samurai were fierce warriors attached to a daimyo or lord, whom they were loyal to and fought for.
In the 16th Century, a politician and former Samurai Toyotomi Hideyoshi persuaded warring groups of Samurai to live peacefully. He convinced them to use diplomacy rather than fighting to achieve peace. After this point the samurai no longer had such an important role.
They still existed and wore armor, but they were seen as spiritual guides rather than warriors. The bushido was now seen as a code for living a moral and spiritual life, and their armor became just a reminder of their historic role.
Nowadays complete sets of Samurai armor can be found in museums and the homes of wealthy Japanese.