Coat of arms of Gavell

The blazon

sa. an eagle, ar. on a chief or, three pheons of the first. — Crest, a demi buck, reguardant, or, vulned on the shoulder gu. [ Granted, hy Patent, \2th August, 1572.]

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.