John Westby Gibson, Dictionary of National Biography… (1887)
“ On 4 May 1556 this institution (a guild as early as 1463) received its first charter, granted to the ‘master and keepers or wardens and commonalty of the mystery or art of the stationers of the city of London,’ which gave remarkable rights over all literary compositions, and power to search for all books obnoxious to the stationers or contrary to law. ”
