1933 Wash. Sess. Laws 335-36, An Act Relating to Machine Guns, Regulating the Manufacture, Possession, Sale of Machine Guns and Parts, and Providing Penalty for the Violation Thereof, and Declaring an Emergency, ch. 64, §§ 1-5.

§ 1. That it shall be unlawful for any person to manufacture, own, buy, sell, loan, furnish, transport, or have in possession, or under control, any machine gun, or any part thereof capable of use or assembling or repairing any machine gun: provided, however, that such limitation shall not apply to any peace officer in the discharge of official duty, or to any officer or member of the armed forces of the United States or the State of Washington. § 2. For the purpose of this act a machine gun is defined as any firearm or weapon known as a machine gun, mechanical rifle, submachine gun, and/or any other weapon, mechanism, or instrument not requiring that the trigger be pressed for each shot and having a reservoir clip, disc, drum belt, or other separable mechanical device for storing, carrying, or supplying ammunition which can be loaded into such weapon, mechanism, or instrument, and fired therefrom at the rate of five or more shots per second. § 3. Any person violating any of the provisions of this act shall be guilty of a felony. § 4. All machine guns, or parts thereof, illegally held or possessed are hereby declared to be contraband, and it shall be the duty of all peace officers, and/or any officer or member of the armed forces of the United States or the State of Washington to seize said machine gun, or parts thereof, wherever and whenever found. § 5. This act is necessary for the immediate preservation of public health and safety, and shall take effect immediately.