Date precedes printer on t.p.
The Sixtus or Xistus (Xystus), to whom the work is here ascribed, is Pope Sixtus II, or according to F.C. Conybeare (The ring of Pope Xystus, London, 1910) Pope Sixtus I.
Master microform held by: ResP.
Microfilm. Woodbridge, Conn. : Research Publications, 1969. 1 microfilm reel ; 35 mm. (German Baroque literature, Yale University Library collection ; reel 7, no. 37).