Coat of arms of Rotland

The blazon

or, on a fesse, betw. three boars heads, erect and erased, gu. as many spears heads of the first. — Crest, a nag s head or, erased, per fesse, gu. maned of the last.

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.