Coat of arms of Spranger

The blazon

per pale, or and sa. a fleur-de-lis, counterchanged. — Crest, on a ducal coronet, per pale, or and az. a fleur-delis, per pale, of the first and second, betw. two wings, the dexter az. the sinister or. Sprat a chev. betw. three sprats, naiant, [JSorne hy Dr. Thomas Sprat, Lord Bishop of Rochester and Dean of Westminster, 1697.]

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.