Show U. U S. S Aids Advertisers A United States postoffice regulation regulation regula regula- tion lion was one of the most Important factors In the development of modem modern modern mod mod- ern em newspaper advertising with the postal regulation of 1804 permitting newspapers and other periodicals cheap mailing rates throughout the country giving advertising a tremendous tremendous tre tre- tre- tre boost Wider and more effective effective ef el circulation led to preparation lion tion of better advertising copy |