I.D. this grille it is definetly a winterfront...posting photos of the back side, but came with no cables, but can see where they go...
Probably not a winterfront. Looks like your typical thermostatically controlled radiator shutters. Still trying to figure out for what vehicle, though.
the point and the location of the cran hole leads to believe it to be 33 chev master 34 is very close but i can measure it the 34 is just a tad longer that the 33 ... i have had three 33 grills and a 34 this was a winter insert available for the colder states like NORTH DAKOTA ETC.... HOPE IT HELPS