To make a spearhead like a Norman smith from the year 1066,you possess to start with an iron steel sandwich. Yup, a piece of hard iron or steel gets sandwiched between two pieces of soft iron until they’re all hammered and welded together. After that, and a socket needs to be made,which means the smith flattens out the metal wide enough so it can be folded into a circle to stick a wooden shaft in.
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Source: gawker.com