Coat of arms of Marker

The blazon

per pale, ar. and gu. a pale counterchanged. — Crest, a greyhound, statant, per pale, ar. and sa. [Borne hy the Rev. John Marker, Rector of Uffculme, Devonshire, 1825.]

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.