Charter of the City of Portland, Street and Fire Department Laws, Ordinances, Regulations &C. Page 225-227, Image 226-228 (1872) available at The Making of Modern Law: Primary Sources.

Ordinances of the City of Portland, To Regulate the Storage and Sale of Gunpowder, and Other Explosive Materials, § 1. No person shall keep for sale any gunpowder in any building, store or place in the City of Portland, without having first obtained a license therefor. § 2. The license for selling gunpowder shall be five dollars per quarter, to be issued as other licenses are issued under the provisions of Ordinance 984, entitled "An Ordinance to impose and regulate licenses in the City of Portland." § 3. No person shall receive, keep or store, or aid or assist any person in receiving, keeping or storing gunpowder in a larger quantity than five pounds, in or into any building, or upon any premises, unless the person receiving, keeping or storing the same is duly licensed to sell gunpowder. § 4. No person or persons duly authorized to sell gunpowder, as hereinbefore provided, shall keep, store, or have in any one place more than twenty five pounds of powder, which shall be kept in any air-tight metallic vessel marked with the word “Gunpowder,” in plain Roman letters, not less than three inches in height, and of proportionate width, which vessel shall be placed or kept at all times, conspicuously in view near the entrance of the premises where kept, and convenient for removal therefrom. § 5. Upon the front of every building or premises where powder is kept in a conspicuous place a sign with the word “gunpowder” painted thereon in Roman letters, not less than three inches in height. § 6. No person shall convey, cause to be conveyed, or assist in conveying in any vehicle and gunpowder, unless the same shall be securely packed in close packages, nor unless such packages shall be securely covered while on the vehicle. § 7. No vessel shall be allowed to remain at any wharf more than twenty-four hours with gunpowder on board, except such as may be kept for ship’s use, and if such vessel shall be at the wharf overnight, a watchman shall be kept on duty on board all night. All gunpowder landed or placed on a wharf, sidewalk, street or public way for forwarding or shipment shall be forwarded or shipped immediately after it shall be so landed or placed. § 8. The provisions of this Ordinance shall be deemed to apply to “giant powder” “gun cotton” or any other explosive substance having an explosive power equal to that of ordinary gunpowder. § 9. Any person or persons violating any of the provisions of this ordinance, shall be deemed guilty of a misdemeanor, and on conviction before the Police Judge, shall be fined not less than ten nor more than one hundred dollars, or by imprisonment in the city jail not less than two nor more than twenty days, or both, at the discretion of the Police Judge. § 10. The officers of the Fire Department and Police are directed to see that the provisions of this Ordinance are enforced, and to make complaint before the Police Judge for the violation of its provisions.