Sumerian Samarra bowl with Swastika, Uruk Period, C. 4000 BC.
The design consists of a rim, a circle of eight fish, and four fish swimming towards the center being caught by four birds. As is typical of cultures from this region, the use of a base six numerical system can be seen in the lines surrounding the bowl, so that there are a total of 120 lines, or four quarters with 30 lines each.
The bowl was excavated at Samarra, Iraq around 1911-1914