Here's my Household. I also have a manual and some other documentation for it. And two sets of attachments that are different -but both missing the adapter foot
The other day I checked and the plates from the Domestic did not fit on the Household, the oval part did not quite line up right. I'm also pretty sure the feet were not interchangable, though I didn't verify that, so I my misremeber.
I've added a Damascus Grand Rotary to my "want" list. I need an older National Rotary for the collection, and that one is very pretty! Some of the other Nationals are rather plain in comparison.