Does anybody ever seen one HP41-EX?

[Sylvain Cote]

If you look carefully at the picture, the silver line around the keyboard identify it as a HP-41C, at least originally.

Easy test to find which 41 model you have, no module plugged.

After a memory lost ...
C: RCL 99 -> NONEXISTENT
CV: RCL 99 -> 0.0000
CX: CAT 2 -> "-TIME 2C", "-CX TIME", ...

All 41 models except blanknuts ...
C: silver line around the keyboard & orange back
CV: golden line around the keyboard & orange back
CX: golden line around the keyboard & silver back