swords is the "leaf shaped" blade, which was most common in North-west Europe at the end of the Bronze Age, on the British Isles in particular. The "carp's tongue sword" is a type of bronze sword that was common to Western Europe during ca. the 9th to 8th centuries BC. The blade of the carp's tongue sword was wide and parallel for most of its length but the final third narrowed into a thin tip intended for thrusting. The design was probably developed in north-western France, and combined the broad blade useful for slashing with a thinner, elongated tip suitable for thrusting. Its advantages saw its adoption across Atlantic Europe. In Britain, the metalwork in the south east derived its name from this sword: the Carp's Tongue complex. Notable examples of this type were part of the Isleham Hoard. The Bronze Age-style sword and construction methods died out at the end of the early Iron Age (Hallstatt D), around 600-500 BC, when swords were once again replaced by daggers in most of Europe. An exception is the xiphos from Greece, the development of which continued for several more centuries. The "antenna sword", named for the pair of ornaments suggesting antennae on its hilt, is a type of the Late Bronze Age, continued in early iron swords of the East Hallstatt and Italy region. China Sword production in China is attested from the Bronze Age Shang dynasty, from roughly 1200 BC. The technology for bronze swords reached its high point during the Warring States period and Qin dynasty (221 BC – 207 BC). Amongst the Warring States period swords, some unique technologies were used, such as casting high-tin edges over softer, lower-tin cores, or the application of diamond shaped patterns on the blade (see the Sword of Gou Jian). Also unique for Chinese bronzes is the consistent use of high-tin bronze (17-21% tin), which is very hard and breaks under excess stress, whereas other cultures preferred lower tin bronze (usually 10%), which bends instead. China continued to make both iron and bronze swords longer than any other region; iron completely replaced bronze only in the early Han dynasty. India Swords have been recovered in archaeological findings of the Ochre Coloured Pottery culture throughout the Ganges-Yamuna Doab region of India, commonly made of copper, but in some instances made of bronze. Diverse specimens have been discovered in Fatehgarh, where there are several