This type of cabinet lighting or power junction box assembly is found in Wurlitzer models
312, 412, 35, Model 400, 316, 416, 616, 616-A, 716, Model 24, Model 24-A, 500, 500-A, 600 and 600-A.

The wiring and switches (if any remain) in this junction box have not been cleaned or tested and may need repair or replacement.

It needs to be restored or can be used for parts.
I do not have the front cover.