Coat of arms of Sexton

The blazon

ar. three chaplets, in bend, gu. betw. two bendlets of the last. — Crest, out of a ducal coronet or, a dexter arm, in armour, embowed, ppr. garnished of the first, holding in the gauntlet an anchor sa. fluke and cable or.

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.