Good points on those, making it as note and that routing may glicht if address has been added to sheds etc. I will take these consern in future edits.

There has been some municipal re-associations (kuntaliitos), this plot used be part of Mäntyharju, then Suomenniemi... and as far I know it is now Mikkeli.
This plot has belong to my family back from roughly 1960. So I could say I know this like back of my hand. Also the MML plot boarders and plot numbers are different on plot site 25A and 25B.