The person looking at it has to figure it out.
That makes it more memorable.
Imagine seeing two vehicles parked beside one another.
One has a normal Washington outline.
The other has the same outline inverted.
Most people will probably notice the second one first.
It creates curiosity.
And curiosity is exactly what happened here.
Grandpa didn’t simply see a sticker.
He saw a strange shape that didn’t make sense.
So he took a photograph and asked:
“What is it?”
Is There One Official Meaning?
Probably not.
This is important.
Internet articles sometimes present symbols as though every person who uses them follows exactly the same rule.
Real-world symbols are often more complicated.
Different people can use the same design for different reasons.
One Washington native may display the upside-down shape because they think it is funny.
Another may use it as a reminder of home.
A third person may simply like the design.