Coat of arms of Wilcocks

The blazon

ar. a lion, rampant, betw. three crescents sa. a chief vair. — Crest, out of a mural coronet or, a demi lion, rampant, sa. collared vair. ( Another crest, an eagle s leg, erased at the thigh, or, standing betw. two wings az.)

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.