IBM PC 83-key keyboard with Cmd keys instead of Function keys

[chris_nh]

So I pulled a PC keyboard off the shelf today and when I sat down and started typing, I noticed the Function keys were labeled Cmd1, Cmd2, etc. instead of F1, F2 ... Searched online and couldn't really a find a reference for these, so I'm curious if anyone might know what it is? Were there model F keyboards like this, or is this perhaps someone's replacement for missing F keys?

Here's a pic:

 

[g4ugm]

Perhaps a special for some kind of 5250 or other terminal emulators. Real 5250 keyboards have a "CMD" key and you generate the equivalent of "F1" by pressing "cmd" then "1"...