Has this anything to do with yuleschrift?

[Helena]

I saw this in a museum and it reminded me of yuleschrift. I am absolutely not knowledgable on this subject, so please forgive me if it’s too farfetched. https://monteprama.blogspot.com/2014/12 ... t-but.html

[ott]

I see scratches that look like I and M, but cannot identify a word.