Object register page:
[One] fragment of alabaster model saucer, [Type IX a], and two more fragments (found 12/19/1925); base seems slightly flattened; [almost complete]. Illustration: Yes. Illustration scale: 1:2
Reisner, George A., and William Stevenson Smith. The Tomb of Hetep-Heres the Mother of Cheops: a Study of Egyptian Civilization in the Old Kingdom. A History of the Giza Necropolis 2. Cambridge, MA: Harvard University Press, 1955, p. 99.