Coat of arms of Freemantle

The blazon

vert, three bars erm. in chief two plates, over all, a lion, rampant, gu. crowned with a mural coronet or. — Crest, out of a mural coronet or, a demi lion, rampant, gu. charged on the shoulder with a plate, holding a standard, quarterly, ar. and or, staff of the last. [Granted May Uh, 1761.]

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.