definitive list of cases for each model calculator

[Kostas Kritsilas]

To be honest, the cases in your pictures, the ones you just posted (HP-45/55/80), when opened up to full size do not look brown, they look gray. In the pictures of the 4 cases, they look dark grey, with the two on the right side somewhat darker.

I have two HP-67 type cases, and two HP-41CX cases (the long ones with the space for the magnetic card reader), and all of them look lighter in colour than your HP-67 case.

I think we are struggling with a colour calibration issue, which is fairly common for Internet images.