WW2 Very rare assault oldest Japanese army contraceptive It is the wartime contraceptive device "Assault Ichiban" used by the former Japanese army. Perhaps the material is natural rubber, it is foolish to use it after it has completely deteriorated, and it is considerably hardened. It's a very rare war material, so why not add it to your military collection.The item "WW2 Very rare assault oldest Japanese army contraceptive Military Antique F/S" is in sale since Sunday, February 28, 2021. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Japan\Other Japanese WWII Orig Items". The seller is "ryomtakeut-0" and is located in Osaka. This item can be shipped worldwide.