AFAIK only the A1000, A500, A2000 shipped with the straight edge "tank" style, at least in the UK. Everything A500+ onwards came with a rounded mouse.
Best way to check would be looking through old magazines and scope out the package shots in advertisements, but not many really liked using the originals. They were uncomfortable for many people. For the minority they were great.
Don't ask me why, I never cared, so long as the thing worked I was happy.

It's not like I ever saw an Amiga with original packaging, intact.
Maybe the rarest is the CDTV controller. That I was impressed with - cut down keyboard, mouse, joystick, all in one wireless package. It was huge, but all the buttons were useful.