Coat of arms of Odoy

The blazon

az. a saltier ar. — Crest, a goat s head, per pale, or and az. counterchanged. O Dea, [Ireland,] ar. in base, a hand, couped above the wrist, cuff turned up, .... holding a sword, in pale, betw. two serpents in chief, embowed, paleways. . . .

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.