Coat of arms of Berkshire

The blazon

gu. a chev. engr. erm. betw. three fleurs-de-lis ar. — Crest, out of a mural coronet or, a demi lion sa. holding in his dexter paw a fleur-de-lis, as in the arms.

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.