A cartouche is an oval or elliptical figure; its default orientation is palewise. It is considered a shape upon which arms may be borne; thus, like the lozenge and escutcheon, when used as a fieldless badge it must not itself be charged. Straight-sided cartouches are found in ancient Egyptian art; more oval cartouches were used for heraldic display [Hope 112]. Both forms have been accepted for Society use. See also egg.
Michael the Dane bears: Gules, on a fess argent a cartouche fesswise gules voided argent.
Axel Bohm bears: Argent estencely sable, a cartouche gules.
Juana Isabella de Montoya y Ramirez bears: Barry engrailed Or and vert, a cartouche pointed in chief and base counterchanged.