Secret seal of Marguerite de Flandre, daughter of comte de Flandre Gui, married Alexandre d'Ecosse (died 1283), then Renauld de Geldre. (Information kindly provided by Dominique Delgrange.)
Frontal view of a cock-headed Anguipes in armour, head to left. Right hand hid behind a round shield, left hand holding a whip. Inscription below the figure: αβραξασ → Ἀβραξάς.
Bibliography
Demay 1873, 28, no. 165.
Zwierlein-Diehl 2007, 471, ad fig. 848.