Headings: Sixtus IV, Pont. Max. (formerly Franciscus, Cardinalis de Rovere) Bulla 16 Aug. 1479 "Et si natura omnibus in rebus" excommunicationis Roberti de Malatestis et aliorum
Collation: [a⁴]. Types: 180 G ‘Sixtus'; 95 (93) G. 4 leaves. 32 lines ([a1r]). Type area: 149 ×97 mm ([a1r]). Leaf [a1r]: ‘Sixtus ep̄s ſeruus ſeruoruƺ dei. Ad futuram rei | meōriā. Etſi natura oīb⁹ in rebus nos ad | miſericordiam poti⁹ quā ad