Fig. 251.
Fig. 252.
Fig. 253.
The mural crown is usually composed in our heraldry of the simple crenellations shown in the example. Abroad, however, a more elaborate and picturesque form occurs in the form of a castellated wall showing three towers at intervals.
Fig. 254.
Fig. 255.
The crown vallery is intended to represent palisades, as in Fig. 253, and when the palisades are more definite and are fastened to the rim instead of rising out of it, the crown is palisado instead of vallery (Fig. 254).