Coat of arms of Hickey

The blazon

ar. a lion, rampant, gu. on a chief erm. a saltier engr. of the second. — Crest, a dexter arm, embowed, in armour, ppr. garnished or, holding in the hand a truncheon of the second.

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.