Coat of arms of Bowland

The blazon

sa. an eagle, displayed, ar. beaked and legged gu. — Crest, out of a ducal coronet, a hand and arm, couped at the elbow, in armour, or, holding a sword ar. pomel or. f Another crest, the hand grasping a laurel branch, vert, with the sword.)

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.