Coat of arms of Chatting

The blazon

sa. a fesse or, in chief three mullets, pierced, of the last. — Crest, a human heart gu. pierced through by a sword, in bend, sinister, point downwards ppr. Chattock, .... three fish, haurient, — Crest, a dexter hand, holding a lion s paw, erased, ppr.

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.