13 



Marking of Closed Packages. 



Color of Ink to be used. 

 Regulation. — All letters and figures relating to grade or brand, in- 

 cluding private marks, used in marking or branding a closed package 

 packed in accordance with the provisions of the law shall be in ink of one 

 color. 



Barrels. 

 Only block letters and block figures of a size not less than 



OINT 

 OTHIC 



(one-half an inch high) may be used in stating on the outside 

 the information required. 



