Ugly...

... traces from the former owner of our house at our window frames.
 I decided to ignore them not longer and tried to remove them.
A "specialist" at the hardware store mentioned to use water. Water? For 25 years old colour? Hahah! I bought "wash petrol" which a as useful as water. Finally I took the good old stinky nitro. Needed a lot of time, all my mood and am totally behind my planing for the renovations
... if it would have been at least my own sloppy work...