The Charter, General Ordinances, &c., of the City of Evansville Page 230, Image 230 (1871) available at The Making of Modern Law: Primary Sources.

General Ordinances [of the City of Evansville], § 23. It shall not be lawful for any person to keep within the limits of the city any gun or blasting powder, in any quantity greater than twenty-five pounds at one time; and it shall not be lawful to keep twenty-five pounds of such powder, or any less quantity, in any other vessel than a tin canister, with a proper cover or stopper, and labelled with the words “gunpowder;” nor shall it be lawful for any person to sell any such powder after twilight, or by candle or gas light.