Greek numerals are decimal, based on powers of 10. The units from 1 to 9 are assigned to the first nine letters of the old Ionic alphabet from alpha to theta . Instead of reusing these numbers to form multiples of the higher powers of ten, however, each multiple of ten from 10 to 90 was assigned its own separate letter from the next nine letters of the Ionic alphabet from iota to koppa .
Two Ionic columns at the front are framed by two anta walls as in a Greek distyle in antis layout. It seems that the temple had an outside wall with windows or doorways, in a layout similar to that of a Greek encircling row of columns ( peripteral design).