Attached is a NEO GEO MVS serial plate that I did up quick as a reference to make my own version.
All the wording and stuff matches the original, even the parts that are incorrect.
(most noteably, the lack of a period after COMPUTING DEVICE)
The font and spacing aren't perfect, but they're not too far off.
I only turned up a couple pics of them online, so I'm putting it here as a reference for anyone else who might want to make their own.
I still don't know the actual dimensions.
If anyone knows, please let me know.