So - I'm searching online to see if I can find more info to date the second machine - and instead I learn about the early Eldredge rotary machines - that have a different bobbin and case than the later National rotary machines - so now I want one of those too . . . The Damascus Grand Joe is holding for me is a great example of an earlier National rotary machine - so I needed that one too LOL!!
However -that does fit in my collection as I also am after the earliest rotary machines.