The back doesn’t look like it opens there are no screws around perimeter of back side . I will work the front up with flat blade there is a lot of rust around bottom edge. The neon rings seem to be below can portion of face but I have foam blocks to help keep it off tubes . I truly appreciate all the answers from all of you .
Thanks Randy

4A7089F9-0A6A-49DC-B2FD-CDE83D603C5A.jpeg 57061D3C-FF25-4FB5-B2DC-0702445221A2.jpeg C871F813-358E-4B37-844F-89CF052FAFA2.jpeg 56D867AE-D37B-4D50-A8FF-F5F9D94ED448.jpeg