[Iohannes de giglis ... Dilectis nobis in Xpisto ... Sixtus diuina prouiden]cia papa quartus ... Datum die mensis CCCC.LXXXJ., etc. [An indulgence to contributors to the Defence of Christendom against the Turks. The plural issue, intended to be filled up for more than one contributor.] B.L. On vellum