1908 (January Session) R.I. Pub. Laws 145, An Act in Amendment of section 23 of chapter 283 of the General Laws

§ 23. No person shall wear or carry in this state any dirk, dagger, razor, sword-in-cane, bowie knife, butcher knife, or knife of any description having a blade of more than three inches in length, measuring from the end of the handle, where the blade is attached to the end of said blade, any air gun, billy, brass or metal knuckles, slung-shot, pistol or firearms of any description, or other weapons of like kind and description, concealed upon his person: Provided, that officers or watchmen whose duties require them to arrest or to keep and guard prisoners or property, together with the persons summoned by such officers to aid them in the discharge of such duties, while actually engaged in such duties, are exempted from the provision of this and the two other following sections.