Pace made a JP front that was almost identical, but George's insight is always reliable.
Below is a photo of a Fey revamp; interestingly with a rectangular coin viewing window.
The hole left of the jackpots on your machine is for a missing access door (to unlatch the back door.).
Just tell us what's in the logo in the upper left corner of lower casting to confirm that it is indeed a Fey.
(a better photo would have helped).