Coat of arms of Henneker

The blazon

gu. three estoiles ar. in chief two crescents az. in base an escallop of the last. — Crest, an escallop or, charged with an estoile gu. [ Granted to John Henniker, of Newton-Hall, 1765.]

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.