device (n.) 11
heraldic design, emblematic figure, armorial
E3 IV.iv.27 [Audley to Prince Edward, of Philip's army] the pendants, [seem to be] leaves; / And their device of antique heraldry
KJ I.i.210 [Bastard alone, of himself] not alone in habit and device
Per II.ii.15 [Simonides to Thaisa] 'Tis now your honour ... to entertain / The labour of each knight in his device [i.e. what is shown on his shield]