Coat of arms of Wilson

The blazon

sa. a wolf, rampant, or, in chief three stars, of six points, of the last, pierced of the field, on a canton ar. an eagle, displayed, with two heads sa. — Crest, ont of a naarquisial coronet or, jewelled ppr. a demi wolf, holding betw. his paws a crescent sa. [ Borne hy Sir Robert Wilson, Knt. M.P. &c. 1826.]

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.