German Pattern Cross Pein Peddinghaus Blacksmith Hammers
Blacksmith Cross Pein Hammer from a Cheap Modified Sledge - YouTube
Blacksmiths' Hammer 0000811-1000 Professional Metalworking Forging Tool Swedish Pattern Round Square Face Cross Peen Engineer Hammer with Wooden Handle Black Head (2.2 lbs/1000g) - - Amazon.com
Swedish Pattern Blacksmith Hammer – Blacksmith Source Tool Company