Edgar Campbell Cowan. Zenon Papyri: Volume III

Georg Olms Verlag, 1971. — 362 p. — (Catalogue général des antiquités égyptiennes du Musée du Caire).he present volume contains the remainder of the dated papyri (nos. 59298-59374)
and a series of undated letters and other documents arranged in alphabetical
order according to the names of the correspondents (nos. 59375-59531 ).
In dealing with the former class I have followed the same system of dating as
in the two previous volumes. But it is necessary to repeat that when we reach
the reign of Ptolemy III, as the difference between the regnal and the financial
year becomes greater, so does the possibility of error. One fact, which has not
yet been properly appreciated, shows what a hold the latter system had on the
inhabitants of the xwpa. When demotic documents are dated by two years,
e. g. '33, which is also 34', while the first is of course the old Egyptian year,
the second is not, as has been assumed, the regnal, but the financial year.
Though this to my mind was already evident, a lately published text, P. S. I.
1010, D, has placed it beyond doubt.