Rare WWII Japanese Navy Gas Mask in Carrying Bag

The rubber gas mask is pliable, and all attachment straps are intact. The eye lenses show some typical age toning. The gas mask is contained within its canvas carrying bag, which shows stains and spots and which bears a stenciled number. The filter canister shows kanji characters in relief. The carrying bag contains the instruction sheet which has some damage. Overall very good field used condition.