Mercurius bifrons, or, The English Janus : the one side true and serious, the other jocular : the true and serious intelligence, or, occurrences domestick and forraign.in the year 1681.Below title on each issue: Published every Thursday.Description based on: Numb. 1 [17 Feb. 1681]; title from caption.First two issues dated in MS (cf. Nelson & Seccombe).Imprint from colophon.Latest issue consulted: Numb. 1 [17 Feb. 1681].Printed in two columns.The title page verso of no. 1 has caption title: The jocular intelligence, or, New from heaven and Hell, from Purgatory and Elezium ...WeeklyYear of publication from date of issue.text