This is Atari XL key grid. Note that there is space for F1-F4 keys, which are found only in 1200XL model.

Here is how to add additional F1-F4 keys to XL models.

Here is how to add additional F1-F4 keys to XE models.

This is how XE keyboard looks like:
Back (c) 1998-2004 Jindroush Last modified: Fri Jul 6 17:07:46 2001