Got my nice grille nosing removed off that manky grille tonight. I've heard that these are riveted on from factory so this one was obviously changed as it was attached with flat head screws and square nuts that looked like they had a previous life at the bottom of the ocean.
I had to grind them all out which proved pretty easy as I did not care about the grille in the least so I did all the grinding from the grille side so as not to damage the part I needed.