Bumper identification - smooth/no groove 33-36?

[ironandsteele]

Can anyone help me definitively identify these bumpers?

They are smooth, no grooves. They measure about 64 11/16 inches end to end. The spacing between the two center mounting holes (center to center) is 28"

I've heard and read about some European Fords having this style bumper with no lines in them. Is this true?

Hoping to verify one way or the other if they are European, and what year they would be for. They seem shorter than 35/36, but I could be wrong. I don't have a stock bumper on any of mine to compare them to...

Thank you in advance.