Coat of arms of Balguy

The blazon

or, three lozenges az. — Crest, a bear ppr. collared and chained or. [Borne by John Balguy, Esq. of Duffield, Derbyshire, 1826.]

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.