Here's the distinct Macintosh Portable keyboards I have that are on my Macintosh Portables. One of them had the mouse replaced with a keypad (they were interchangeable). The other thing you could do with the keyboard is swap the keyboard/mouse and have the mouse (or keypad) on the left instead of on the right. Very cool design.
Here are the pics of the three distinct ones I have (A, B and C). Note all three keyboards have different color switches
Macintosh Portable A
Macintosh Portable B
Macintosh Portable C