1661 Mercurius Publicus, issue number 34 for 22-29 August, headed "The Sum of all Affairs now in agitation in England, Scotland, and Ireland, Together with Forrain Inteligence, For Information of the People, and to prevent false News", the sixteen pages with fascinating content including the first known advertisement which mentions datestamps under the heading "An Advertisement from His Majestie's Post-Office"; light horizontal fold, otherwise fine