Coat of arms of Sainsbury

The blazon

az. three lozenges, conjoined, in bend, erminois, a bordure of the last. — Crest, a demi antelope ppr. collared or, charged on the body with three lozenges, as in the Arms. [Borne by the Rev. Sainsbury Langford Sainsbury, of Froyle, Hampshire, 1823.] St. Alban, az. a saltier or. St. Alban, erm. on a cross gu. nine bezants.

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.