I have hit an obstacle in my quest to replace my light fixture. The current electrical box in the ceiling is a very old type as shown in the picture I attached.
How does one go about removing this? I have searched high and low, even looking for older products and their manuals but no luck as this box seems to be ancient. The screws don't seem to come off? No matter how much I try they seem to be stuck on purpose. There is also what looks like a brace holding the box.
I appreciate everyone's time!