From the telltale shadowing on the large plate by those nuts, I'd say you are missing the position indicating dial in it's entirety. That or the plate that is there now is a poor mans replacement. That large round plate has a witness mark on the top. This should be indicating against a graduated dial. I mean how do you have a cross feed handle without in indicator as part of it to let you know how far you're feeding? Those two nuts may have been part of what holds it on.
Maybe there's something not shown in the picture that would change my tune, but just commenting on what I see in the picture offered.
I know nothing of this particular lathe, but lathes in general should have a cross feed dial.
Edit: Just looked at a Mori lathe online. Yes you're missing a lot of stuff. That shaft should be full of things right up to the handle. Indicator dial included.