Coat of arms of Franks

The blazon

vert, on a saltier or, a torteaux. — Crest, on the trunk of a tree ppr. a hawk of the last, charged on the breast with a torteaux. ( Another crest, on the stump of a tree ppr. a falcon 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.