Now, to procede with the right part of Hb5-31, I also remember another early experience with Barthel's catalogue of glyphs. It was Aa1-74:

 

Although Barthel had several sitting persons like this in his catalogue

 

 

 

he had not this special one which I needed in order to determine the code number.

 

In no. 380 Barthel pictures a type of glyph which doesn't occur in the rongorongo texts. The idea presumably was to indicate that sometimes we find glyphs the left part of which is like 380. But what about the right part then, in my example? I couldn't find it in his catalogue, so I gave Aa1-74 a new code number of its own.