Opus nouum. Gildas Britannus monachus cui sapientis cognome[n]tu[m] est inditum De calamitate excidio & conquestu Britanniæ, quam Angliam nunc vocant ... excusus.

For discussion of imprint, see: Rhodes, D.E. "First edition of Gildas," Library, 6th Series, I (Dec. 1979):355-360. Other sources give London, Paris, and France as place of publication.
Preface, dated April 1525, signed by Polydore Vergil.
Printed with 85 mm italic types, not in Isaac or Vervliet; with woodcut initials.