So, I have here piece of broken green plastic triangle I found this summer on sea side. It's washed with salty air and could be old one to two years. Founded on street far away from dense population area, almost in hills.
The thing is that at home I have triangle of the same dimensions and design, only grey. This is not some OMG coincidence as they probably have some same standards (in triangle industry), but it's funny thing.
I scanned it and put it one on top of another for comparison.