Help me identify this Nanao chassis from my Madonna

[Arcade-Projects]

I'm finally making time to tinker with the Madonna. Going to pull this chassis soon and clean and recap. The label on it is very faded.

It's very faint but I think it says MS8 - 2xxx
so I can't tell if it's a 25 or 26 and which one.

This is located in an IREM Madonna.

ibb.co/S3cf6Qj
ibb.co/g6zRm6z
ibb.co/Khd17gR
ibb.co/F7hWm0m
ibb.co/4JJH9h3

Thank you!

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