1913 Mo. Laws 437, Municipal Corporations: Cities of the Second Class, § 8, pt. 61.
To regulate the use and storage of explosives – To regulate, restrain and prevent the discharge of firearms, fireworks, rockets or other explosive materials and substances in the city and to regulate the keeping, storage and use of powder, dynamite, guns, guncotton, nitroglycerine, fireworks and other explosive materials and substances in the city, or within two miles of the limits thereof.