Headlight bucket

On the top leading edge of the headlight bucket above the finned area the edge is angled. My 5F07 came with two different buckets installed , one is angled and one is a squared edge. What dates are the angled edge for ?

One of the many issue's we are addressing while the car is awaiting the new engine.

Quote from CharlesTurner

The angled head light assemblies were phased out around Sept '64 or so. Might be some early October cars.

Thanks for the quick reply. We are trying to correct a few issue's while the motor is out. We just cut out the license plate frame to match this old photo. The one above is a test day April this year.