1903 Or. Laws 31, Reg. Sess., Spec. Laws, An Act to Incorporate the City of Portland, Multnomah County, State of Oregon, and to Provide a Charter Therefor, and to Repeal All Acts or Parts of Acts in Conflict Therewith, ch. 3, art. 4, § 73, pt. 38.

To regulate and prohibit the use of all guns, pistols, and firearms, missle [sic] weapons, firecrackers, bombs and detonators of all description[.]