Third prophet of Amen

NB. Because the GEM has assigned new inventory numbers and there is currently no database that allows me to trace the original ones, I have no idea which original catalogue number this papyrus corresponds to. The museum states that it concerns a Third Prophet of Amen (like Menkheperre B from Bab el‑Gasus), but I cannot find any indication of that on the papyrus itself. I assume that this papyrus must have belonged to a different owner than Menkheperre B, since he already possessed a complete Amduat papyrus