Hammer, Mallet, Martel

The tool by that name.

Mallet

Ancient hammer or maul

Plasterers' Hammer: The hammer used by plasterers and borne by them as part of their armorial ensign.

Hammer, ducally crowned, as borne in the arms belonging to the Company of Blacksmiths. 

Blazon of the Worshipful Company of Blacksmiths

Arms:

Sable a Chevron Or between three Hammers Argent handled and crowned with Open Crowns of the second

Crest:

[Upon a Helm on a Wreath of the Colours] A Phoenix in flames rising proper

Mantling:

Sable doubled Or

Motto:

By Hammer And Hand All Arts Do Stand [The ancient motto: As God Will, So Be It]

Granted 24 June 1610 by Sir William Segar, Garter King of Arms.

Blazon of  the Worshipful Company of Plaisterers

Arms:

Azure on a chevron Argent a Rose Gules budded Or stalked and leaved Vert between two Fleur-de-lys Azure in chief a Trowel fessewise between two Plasterers' Hammers palewise all Argent handled Or and in base a Plasterer's Brush of four knots tied Argent handled Or

Crest:

[Upon a Helm on a Wreath Argent and Azure] An Arm vested bendy of four Gules and Or holding in the hand proper a Plasterer's Hammer as in the arms

Mantling:

Gules doubled Argent

Supporters:

On either side an Opinicus Vert winged membered and eyed Gules the throat and belly purfled Or

Motto:

Let Brotherly Love Continue

Granted 20 January 1546; modern copy entered in the records at the instance of Charles George Young, York Herald.