Poster: To Mutually Protect Military Telegraph and Telephone Wires, Which Are the Most Important for Security, Please Pay Attention to the Following Points (Great Kanto Earthquake Materials Collection)

Poster: Notice to Citizens Regarding Protection of Telegraph and Telephone Wires (Great Kanto Earthquake Materials Collection)

Poster: Do Not Cut the Military Telegraph and Telephone Wires! (Great Kanto Earthquake Materials Collection)