CACHE IS NOT AT POSTED COORDINATES!!!!!
Irvine Park was established in 1906. While roaming the 318 acres of the park, I came across a parchment that seemed a lot older. It had funny writing on it and seemed to be coordinates to somewhere. . I was able to figure out some of it. I'm hoping for some help in locating this artifact or whatever it is that it's leading to. I have solved for the following coordinates so far:
N44 57.XXX and W091 24.XXX.
This is what I haven't been able to decipher yet.

I think if we can decipher this, it should lead us to a treasure! Can you help me find it?