Jointing Iron:
Definition:

Used for the specialised process of Tuck Pointing (see Decorative Work). The heavy flat blade, set in a trowel like handle, is made as a bed jointer (200mm long) and a cross-jointer (75mm long) with a thickness of 8mm. The edge of the blade may be flat; concave; convex, or with a recessed V in order to produce a variety of joints.