Your radio seems to be missing a heavy steel bezel that goes on the front of the radio. If you look at the GM instructions, you will see it in the first illustration. t
There is another illustration that shows a finish plate on the outside of the dash. I would expect this to be similar to what you would find in a 1947 to 48 Oldsmobile.
I think I may have the heavy steel plate as I have a number of these radios. However without the finish plate, you might not want to use the radio. The radio itself has an output stage that uses two tubes and thus gives twice the output power of the standard US model.
