Green’s Dictionary of Slang

Cockle Bay coat of arms n.

(Aus.) a broken nose and a pair of black eyes.

[Aus]Sydney Herald 16 Sept. 2/3: Sarah Jackson, mounting the Cockle Bay Coat of Arms, to wit, a broken nose, with a pair of black eyes as supporters, was handed to the bar, charged with sporting her figure on the top of a heap of wood at the Market Wharf, smoking a short pipe, and singing out most lustily, `Oh the days are gone when beauty bright, My heart's chain wove.'.