Coat of arms of Shannan

The blazon

az. a boar s head, couped, ar. a bordure or ; on a chief of the second, three mullets of the first. — Crest, a dove holding in the beak an olive-branch. [ 3 S ] Shand, originally Sand, [Montrose, Scotland,] az. a saltier ar. ; on a chief of the last, three mullets gu. — Crest, a dove and olive-branch 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.