P. Mich. Inv. 3521 (Dialect W)Two conjugated leaves of a papyrus codex containing excerpts of the Gospel of John. It was found together with P. Mich. Inv. 3520.  Fol. 19 (verso): John 9: 40-10:1. Fol. 22 (recto): John 10: 18-22. Origin unknown. 4th-5th century? Papyrus; Fol. 19: 14.3 x11.1 cm. Fol. 22:14.8 x 11 cm.