It's a Clint Eastwood Signature Fretless Jazz, the bass with no name.
Certainly looks like it was built by someone who knew what they were doing, a beautiful solder job with Bartolini's and 22-fret neck. I give it extra points for NOT having a brand name on it, if it plays well and sounds good, who cares ?
I love 'brown basses'. If it was me, I'd fill in the PG holes, change out to black hardware, and work the wood to an oil-finish dull look, maybe go back to one of those black crinkle finish metal pickguards.