Coat of arms of Calcraft

The blazon

per fesse ar. and erm. three lions, passant, guardant, in pale sa. all within a bordure, wavy, az. — Crest, a greyhound, courant, sa. collared and ringed ar. on the body a pallet, wavy, or. [ Granted Decemher 8, 1770.]

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.