Coat of arms of Caldron

The blazon

ar. a chev. betw. three martlets sa. on a chief of the last as many cross crosslets or. — Crest, a dexter hand holding a palm-branch, slipped, ppr. Ca ldw all, [Inglis, Scotland,] az. across, pattee, fitchee, ar. within an orle of eight estoiles 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.