Coat of arms of Redhead

The blazon

sa. a bend engr. or, betw. two cottises ar. on a canton of the last, a saltier gu. — Crest, a sini.ster arm, in armour, ppr. embowed to the sinister, holding in the gauntlet a sword, point downwards, ar. hilt and pomel or, charged above the wrist with a crescent of the last.

A blazon is the description of a coat of arms in the technical language of heraldry. The drawing comes from that text, and from nothing else.