Some Historic Graffiti On A 1905 Swiss Half Franc

I purchased this BU 1905-B Swiss Half Franc in 2023, but only last week, when looking at it under magnification, did I notice that it has some light graffiti scratched in the obverse fields.

It reads "Schiller" on the left side and "100 Jahre tot" ("100 years dead" or, in other words, "100th anniversary of his death") on the right side.

As best I can determine, someone in 1905 took this newly struck coin and created the graffiti to commemorate the 100th anniversary of the death of the German playwright Johann Christoph Friedrich von Schiller, which occurred on May 9, 1805.

Maybe this was even done by some adoring Schiller fan, I imagine a young college student, on the actual 100th anniversary, or May 9, 1905, using this piece of pocket change.

Obviously, we'll never know. But it is interesting and fun to speculate.