Other weapons are bone spearheads and flint arrowheads. Other stone shapes made were chisels, adzes, maces and spearheads. This site shows agricultural technology as iron implements sickles, nails, clamps, spearheads, etc. Exceptions include copper hatchets and spearheads in the Great Lakes region. Items manufactured during this time were weapons such as swords, daggers, and spearheads. This includes bronze axes, spearheads and knives. The Climate Group spearheads and supports several projects, campaigns and summits. The Wehrmacht flanked, encircled, and defeated the Red Army's armored spearheads south of Kharkov. Operations would involve armoured spearheads, launched from forward positions in Punjab and Rajasthan. Phineas mainly conceives each project while Ferb spearheads its construction. Bronze spearheads and axes (including three duck-bill axes) were found in four of the graves. Their primary mission was to protect the armored spearheads in the Dnipropetrovsk area. The initial blow delivered by German armored spearheads thus proved devastating. Using these it moved southward cutting the supply road behind the panzer spearheads. The Maunga Orito obsidian was used to make the "mataa" spearheads.