In this third part of the series, we make three sand cores that will create spaces in the cast piece, within the mold: one for the shaft of the spear, and two for the “lunate” holes on either side. #bronzeage #bronzecasting #bronze #spear #spearhead #celtic #metalcasting #metalworking #blacksmithing #asmr #sandcores #sodiumsilicate #waterglass