Coat of arms of Shapleigh

The blazon

vert, a chev. betw. three escallops ar. — Crest, an arm, vested, gu. turned up ar. holding in the hand ppr. a chaplet vert, garnished with roses of the first. [Herald's Office, Devon and Cornwall.

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.