Retail dealer to equip firearms with gun locking device and provide written warning at time of sale. Penalty.

(b) Each such person, firm or corporation shall conspicuously post and at all times display the warning specified in subsection (a) of this section in block letters not less than three inches in height. (c) Any person, firm or corporation which violates any provision of this section shall be fined not less than five hundred dollars for each violation. Cited. 242 C. 211.