Yes, they are top clamp. You loosen that round thing on the presser bar, slip the foot into the holder and tighten.
they are called top clamp because the clamping comes down from the top, not the side like Singer does.
That machine is made by Free - and takes the same feet/bobbins as the rest of the Frees. It does not take the bobbin/feet of the earlier model New Home machines.
I really like that machine - the gold is one of my favorites. I'd have been really tempted to take it home even though I already have one like it in a case.