Grappling iron (Period)

A grappling iron is a metal hook, tied to a line and thrown at enemy ships so they may be pulled closer.  It is also called a “grappling hook” or “grapnel”.  It’s a period charge, found in the arms of Stewyne, mid-16^th C. [Bedingfeld 58].  The grappling iron is drawn with three or four flukes; it is palewise, flukes to base by default, though when held in a hand, the iron’s flukes are to chief.  For related charges, see anchor.

Hernando Herodes Montenegro de Mondragon bears as a badge:  In pale two grappling irons of four hooks, conjoined at the ring sable.