The George Barnsley and Sons B50D 12 oz Hammer manufactured in Sheffield, UK
 
Fitted with a hickory shaft and available with a flat or a domed face
 
Nigel Armitage asked us to rework the face of the hammer for the domed option, when the domed face is used as a 'Setting Hammer' onto the leather it 'seals' and flattens the stitch for a smooth finish