Arthur Charles Fox-Davies,
A Complete Guide to Heraldry
(1909)
“ SINCE one's earliest lessons in the rules of heraldry, we have been taught, as one of the fundamental laws of the achievement, that the helmet by its shape and position is indicative of rank; and we early learnt by rote that the esquire's helmet was of steel, and was placed in profile, with the visor closed: the helmet of the knight and baronet was to be open and affronté; that the helmet of the peer must be of silver, guarded by grilles and placed in profile; and that the royal helmet was of gold, with grilles, and affronté. ”
