Where are Admin styles for fields stored?

Hello!

I have no access anymore to an installation where the Styles for CustomPostTypes were styled, as that project is finished.
I have FTP- and MySQL-backup of that installation.

Now I search for those CSS-definitions but can't find them, where are these styles stored?

Please help me out, I do not want to re-invent the wheel ;=)

Cheers, Connie