OK - here it is. This is an early New Home rotary machine.
the back is different, but I believe that is just an age thing - this one is an older style.
This is a later New Home - before Free took control. This one is very similar to the Singer 15 and takes taht style bobbin case.
This one is from after Free too control, and it takes the same bobbin case as other Free rotary machines of that era.
I only have a newer National Rotary, and while the bobbin case is sort of similar, the big difference is the bobbin has a rather large hole in the middle.
I won't be getting my early National Rotary until later the spring, but we could have Joe go look at teh bobbin case to see what it looks like. (that is the Damascus Grand).