i don't believe this is an original Neo Geo cab. It has a MV-1 which has the regular Jamma standard so I think someone converted to Neo Geo. any guesses on what it used to be?
(https://s7.postimg.cc/txftu7f0r/image.jpg)
(https://s10.postimg.cc/cb8bxqebt/image.jpg)
(https://s29.postimg.cc/eqxpat6qr/image.jpg)
I'mma gonna say it's a Williams cab. Google "arcade cab silhouettes identify" you should get some hits on stuff that can help.
Look under the CP, see if there are old holes that where drilled, might help ID the cab...I'm thinking Joust.