Coat of arms of Wylde

The blazon

or, a fesse, betw. three harts heads, erased, sa. attired and langued gu. — Crest, a demi buck, couped, sa. with a crown and ring about his neck, attired, and unguled, or. [GV anted to William Wylde, of Nettleworth, 3rd Eliz.]

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.