Note the different angles of the lines of writing on each side of that yellow line.
Saw a pic last night where someone had drawn straight lines under them.
That’s what sealed it for me, even moreso than the ink
This is the first time I have seen the inscription, I am a professional land surveyor and review engineering drawings in my daily work. I.e. I look for straight lines all day long.
Aside from the difference in the inks,the alignment of the words jumped out at me immediately! Glad that someone else noticed that!