Oswald Barron, 1911 Encyclopædia Britannica (1911)
“ When the fashion for slittering the edges of clothing came in, the edges of the mantle were slittered like the edge of the sleeve or skirt, and, flourished out on either side of the helm, it became the delight of the painter of armories and the seal engraver. A worthless tale, repeated by popular manuals, makes the slittered edge represent the shearing work of the enemy’s sword, a fancy which takes no account of the like developments in civil dress. Modern heraldry in England paints the mantle with the principal colour of the shield, lining it with the principal metal. ”
