This is a single sided  Porsche Illuminated sign. It has a 120v plug on it with an older style witch that powers the sign. The surround on the sign is metal and the face is a lexan/plastic type material.
 
There is a sticker on the side of the sign that says, ‘remove before use’. Because it is fluorescent, the light takes a few seconds to fully power on, and the light from it looks very vintage.
 
We bought this from a private collection, and don’t know much about the history of it before that, but a very neat sign for sure!
 
It has some light scratches on the front and a few minor places where the paint has flaked off and some white shows through, there are only a few, but wanted to mention it. 25 inches wide x 12 inches tall x 3 inches deep