Can you show the how it threads? And the shuttle? Or any attachments? Those would be really helpful in determining if it is anything like a New Home, other than the outside. A few other mfg made machines with that curved pillar, but New Home made the most like that. It's an elegant design (IMO) so I would almost expect a French company to copy it LOL!!
OK- I admit, I'm rather fascinated by that machine!