"The U.S Government Printing Office (GPO) provides publishing & dissemination services for the official & authentic government publications to Congress, Federal agencies, Federal depository libraries, & the American public." The GPO began in 1813.
Further information about this individual or organization may be available in the Special Collections Research Center Wiki: http://scrc.swem.wm.edu/wiki/index.php/United States. Government Printing Office. .