Clavis apocalyptica, or, A prophetical key : by which the great mysteries in the revelation of St. John and the prophet Daniel are opened : it beeing made apparent that the prophetical numbers com to an end with the year of our Lord, 1655 : in two treatises: 1. Shewing what in these our times hath been fulfilled, 2. At this present is effectually brought to pass, 3. And henceforth is to bee expected in the year neer at hand : with an introductorie preface / - Hartlib, Samuel, (Printed by William Du-Gard for Thomas Matthewes, and are to be sold by Giles Calvert ...,, 1651)