Since the important work of Pohlenz and Wüst there has been general agreement that Philip's Letter, preserved in the Demosthenic Corpus as [D.] 12, contains authentic material. But controversy continues on some points, and this article attempts to deal with them.

In his text Griffith wrote of the Letter as if it was an authentic document (e.g. 567) but raised his own serious doubts (553), especially in an Appendix entitled ‘Afterthoughts on the Letter of Philip’ (714-16). His chief doubt was about the exploit of Callias, the leading politician at Chalcis in Euboea, then in alliance with Athens, who was said, in Griffith's translation, to have ‘captured all the inhabited cities on the Gulf of Pagasae’.