The complete emblem consists of a three-field shield with devices in the form of a red diamond on a red ground, a light blue chalice with two crescents (pens?) in dark blue and white on a yellow ground, and a single, white chalice on a dark blue ground. Exactly which function this emblem represents is unknown.
Source: BIERMAN, Irene B. (1998). 'Art and architecture in the medieval period,' in: Carl F. PETRY (ed.), The Cambridge History of Egypt, vol. 1, Cambridge: Cambridge University Press. pp. 372-373.
Metropolitan Museum of Art online catalogue (retrieved 11 March 2016)
GVE