Right back corner - there are only a few that way, I'll look when I get home and see which ones are that way.
I have one and think there was something uncommon about it, don't recall what though. I'm at work and wont' be home for a few hours yet.
Also, if it has a leaf tension -that seemed to be rather uniform for each MFG over models. And if it's a US made machine, determining what attachments fit is a very good way to figure out who made it. That is another thing that seemed to stay uniform even with the look changed.
Does your machine take top clamp, side clamp or feet that slip over the end of the presser bar?