The Collaborative International Dictionary of English v.0.48:

Scutcheon \Scutch"eon\, n. [Aphetic form of escutcheon.]
   1. An escutcheon; an emblazoned shield. --Bacon.
      [1913 Webster]

            The corpse lay in state, with all the pomp of
            scutcheons, wax lights, black hangings, and mutes.
                                                  --Macaulay.
      [1913 Webster]

   2. A small plate of metal, as the shield around a keyhole.
      See Escutcheon, 4.
      [1913 Webster]

WordNet (r) 3.0 (2006):

scutcheon
    n 1: a flat protective covering (on a door or wall etc) to
         prevent soiling by dirty fingers [syn: finger plate,
         escutcheon, scutcheon]
    2: a shield; especially one displaying a coat of arms [syn:
       escutcheon, scutcheon]