15 U.S.C. § 1174 : US Code - Section 1174: Labeling and marking of shipping packages

Search 15 U.S.C. § 1174 : US Code - Section 1174: Labeling and marking of shipping packages

All gambling devices, and all packages containing any such, when
shipped or transported shall be plainly and clearly labeled or
marked so that the name and address of the shipper and of the
consignee, and the nature of the article or the contents of the
package may be readily ascertained on an inspection of the outside
of the article or package.