Here is an example of the stepped capslock, as well as the homing bar on the F/J keys:
This is one of the WYSE rubber dome full size boards that webwit picked up for me once (and then recycled)
You can see the F and J keys have a bar and the capslock has a small step. You can see the white plastic backplate through the gaps between the keys.
Near identical case and design, but this is the MX variant. The F and J keys are dotted, the capslock has a bigger step. The gap between keys is smaller, you can see the black below.