Section 20
SEC. 20. Section one hundred and two of Act Numbered Twenty-three hundred and thirty-nine is hereby amended to read as follows: "SEC. 102. Sign to be exhibited by distiller or rectifier.— Every person engaged in distilling or rectifying spirits, and every wholesale liquor dealer, shall keep conspicuously on the outside of his place of business a sign exhibiting, in letters not less than six centimeters high, his name or firm style, with the words 'Registered distiller,' 'Rectifier of spirits,' or 'Wholesale liquor dealer,' as the case may be, and his assessment number. Such a sign shall likewise be kept conspicuously on the outside of the place of business of every person engaged in the manufacture or sale at wholesale of motor spirits and mineral oils."