I had a black Bicentennial. It was awesome, and the case was indeed like yours. I eventually sold the guitar for one reason only -- and let this be a lesson to us all! -- and that was because some previous owner had used a cleaner/polish that made the finish get tacky over time. You could do a naptha or other cleaning, and it would feel fine until, inevitably, the stickiness returned. Really depressing. But yup -- steller guitars, for sure. Yours is a beauty.
I have one that came with a nice but really odd case. it is smaller and more like a 60's case. The fit is so unique it fit perfectly it must have been made for a bird and it has a lot of wear and age so It seems period correct.