Coat of arms of Treadway

The blazon

ar. a chev. az. betw. three trefoils, slipped, vert. — Crest, a dexter hand, couped below the wrist, in armour, ppr. holding a sword of the last, hilt or, on the point a Turk s head, couped at the neck, ppr.

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.