staters

One stater was equal to four drachmas. Drachmas were coins widely used in Ancient Greece and it is uncertain as to how much one drachma would be in today's money. However, according to some, one drachma could be viewed as being equivalent to one day's skilled work.

Information obtained from http://www.classics.uc.edu/~vanminnen/Alexandria/Weights,_Measures,_Money.html and http://en.wikipedia.org/wiki/Greek_drachma (pictures of drachmas are also available on the wikipedia link)