The Egypt Exploration Society distribution lists document the following as having been allocated to the Horniman:
Petrie (Abydos I), 1901-02 (sent 1902)
Tomb M14
Lid of sarcophagus. LXXIX. 6
Relevant publications:
Simkin, Matthew and Eileen McDonagh 1995. Redisplay of the Egyptian collection at the Horniman Museum. In Brown, Carol E., Fiona Macalister, and Margot M. Wright (eds), Conservation in ancient Egyptian collections: papers given at the conference organised by the United Kingdom Institute for Conservation, Archaeology Section, and International Academic Projects, held at London, 20-21 July 1995, 103-108. London: Archetype.
Vartavan, Christian de 1999. Hidden fields of Tutankhamun: from identification to interpretation of newly discovered plant material from the pharaoh's grave. Triade Exploration's opus magnum series in the field of Egyptology 2. London: Triade Exploration.
Molleson, Theya I. 1993. The Nubian pathological collection in the Natural History Museum, London. In Davies, W. Vivian and Roxie Walker (eds), Biological anthropology and the study of ancient Egypt, 136-143. London: British Museum Press.