No text, but a visual code

[Antonio García Jiménez]

It could be as you say Hermes. I think the first thing is to identify the symbols that represent each of the glyphs in the script. It is not easy, but I am inclined to believe that the gallows are an ideogram of the Sun. In fact, they are the only glyphs that stand out and in each string of symbols there is only one gallows.

As I see it, the two-legged gallows represent the Sun during the day and at night. The arrow indicates the day. The one-legged gallows represent the Sun at the lunar nodes, the head and tail of the dragon in terms of medieval astronomy.