The publishers of all newspapers having a circulation in rural sections of the Commonwealth may erect and maintain suitable newspaper route boxes along and on the rights-of-way of the public highways throughout such rural sections, in which to deposit newspapers for their subscribers. The short name of the newspaper to be deposited in each such box, but nothing more, may be plainly printed thereon. All such boxes shall be located so they do not interfere with or endanger public travel on highways. All such locations shall meet with the approval of the Commissioner of Highways.