The first column was arranged either as a single slot with three different symbols or as three separate slots with one, one and two beads or counters respectively and a distinct symbol for each slot. It is most likely that the rightmost slot or slots were used to enumerate fractions of an "uncia" and these were, from top to bottom, 1/2 s, 1/4 s and 1/12 s of an "uncia". The upper character in this slot (or the top slot where the rightmost column is three separate slots) is the character most closely resembling that used to denote a "semuncia" or 1/24. The name "semuncia" denotes 1/2 of an "uncia" or 1/24 of the base unit, the "As". Likewise, the next character is that used to indicate a "sicilicus" or 1/48 of an "As", which is 1/4 of an "uncia". These two characters are to be found in the table of Roman fractions on page 75 of Graham Flegg's book. Finally, the last or lower character is most similar but not identical to the character in Flegg's table to denote 1/144 of an "As", the "dimidio sextula", which is the same as 1/12 of an "uncia".