There's an indentical bass branded as Aria, Pan and/or Diamond. Maybe others too. Early 70s Japanese. And nothing in common with other Epiphones, though it's a very fun bass to play.
Mine is the Pan. And I found a dreadnought acoustic case that fits it nicely.
A big electric guitar case can fit, too. I have the same thing with a "Lyle" label, and keep it in a nice Epiphone "Dot Sheraton Casino" case (that's what they called it anyway.) It's very tight, but I think that's probably good.