Seal of Allan MacDougall of Argyll attached to an indenture dated 20 June 1319. The seal described on page 122 of Bain, Joseph, ed. (1887). Calendar of Documents Relating to Scotland. Volume 3, A.D. 1307–1357: "Fragment of a seal, red wax, appended. A shield bearing a lymphad within a bordure wavy, charged with garbs, a dragon with forked tongue at sinster side of shield".