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. 22 (verso): John 10: 22-26. Fol. 19 (recto): John 9: 34-39. Origin unknown4th-5th century? Papyrus; Fol. 19:14.3 x 11.1 cm. Fol. 22: 14.8 x 11 cm.