De Svmmo Pon- tifice Christi In Terris Vi-cario, Eivs- q́ue officio & potestate, Liber verè singularis, & erudi-tionis, & purisermonis nomine, In modum Dialogi cōscriptus olim, nunq[uam] verò antehac editus, Authore Reginaldo Polo Anglo S. R. E. Cardinali Reuerēdiss. (device)