Coat of arms of Shevill

The blazon

gu. a chev. erm. hetw. two crescents ar. in chief, and a fleur-de-lis or, in base. — Crest, out of a naval coronet or, a demi lion ramp. gu. holding betw. the paws a ship s sail ar. charged with an anchor sa.

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.