(16) The filial piety ([phrase omitted]) is a compound idiograph
of the old ([phrase omitted])' and 'son ([phrase omitted]),' describing a child is holding up his parents.
Having introduced terminology to describe the parts of signs and their orientation, Stratford is able to explain how the graphs differ and which characteristics make them diagnostic idiographs that can point to the scribe's identity.
To be fair, Vita seems to be aware of the relevance of diagnostic idiographs and from several references one gathers the impression that these are for him especially the signs A, NA, EN, LUGAL, GIR, and MES.
Let me take a detour and look at how the case for handwriting is made even stronger in cultures that use idiographs
or individual characters for each word, as in Chinese.
And the idiographs
were doubly wrong to think, despite the abuses of "Orientalism," that real knowledge of particular places could not be produced by the application of theories and methods developed in other contexts and in other languages.