Period (750–475 BC) This period is distinguished by the jugs of the free field style. They feature unique schematised bichrome type representations of bulls, birds, fishes and additional decorative forms. Cypro-Classical Period (475–325 BC) A type of Bichrome pottery (Bichrome VII) was produced as late as the Cypro-Classical Period. By this time, the artists of Cyprus were most heavily influenced by the art of mainland Greece, but Cypriot idiosyncrasies, such as the pitchers with figural spouts still existed. The human figure made more regular appearances in art than in previous ages, and sculpture became popular on large and minuscule scales. Scientific analysis In the early 1970s, a noted nuclear scientist Isadore Perlman undertook the analysis of numerous Cypriot ceramics sent to him by the Swedish archaeologist, Einar Gherstad, when he pioneered high-precision methods of neutron activation analysis at the Lawrence Berkeley Laboratory in the US. Neutron activation analysis helps to determine the origin of ancient pottery and other artifacts through the analysis of the clay from which they were made. He was helped in the project by another noted scientist Frank Asaro. Second millennium BC pottery from Cyprus was one of the first archaeological projects that Perlman and Asaro undertook. The project of the origin of the then assumed Second Millennium Palestinian Bichrome Ware was undertaken as part of the PhD thesis of Michal Artzy. This project was chosen because the archaeology for that period in that area was rather confused, and Perlman hoped to add some clarity to the matter. Aided by the Swedish archaeologist Einar Gjerstad, they obtained 1,200 pottery sherds excavated by the Swedish Cyprus Expedition in 1927-31. Up until that time, the distinctive type pottery called "Bichrome Ware," first found in Tel Ajjul in Palestine by the archaeologist Sir Flinders Petrie, was believed to originate in Palestine. This pottery was very common all over the Levant. The Berkeley group showed that, in fact, the chemical composition of the pieces matched the composition of Cyprus-made pottery, which meant that these items were later exported to Palestine and other areas, a result that had extensive ramifications on the archaeology of the Eastern Mediterranean. Thus, it was found that the fast wheel was used in Cyprus in the second millennium BC (which was not known before). Also, many types of pottery previously believed to have originated in Ras Shamra-Ugarit, now in Syria, had actually been made in Cyprus. See