Gymnast2

Thank you for your help OurWorkbench.

I think, that very few machine types got this combination:

Zigzag
Free arm
Needle threaded from side

A guy on another forum claimed, that his Kenmore got it. Now later he admit, that the needle is threaded from front. I did found drawings here: Sears spare parts site on Kenmore 158.19130 - https://www.searspartsdirect.com/mod...6BpGtIWU11VHdk
Unfortunately the drawings state, that needle is treaded from front. Therefore this manual do not interest me anymore.

However I found a Princess machine here, and it have been sold in Germany as "Prinzess Freiarm Automatik". The site claims, that it was manufactured in Japan. Most likely the machine was sold to other parts of the world too. You see more pictures of the machine here, and that the hook pass right of needle:

Naehmaschinenverzeichnis with Princess machines

You need to go to the website to look for the pictures, because they are copyrighted. I have tried to look for other pictures of it via Google, but I did not succeed. Have you seen this machine before?

Necchi did make some free-arm machines like that. This is a video, that show this mechanics:
Video of Necchi Supernova free arm mechanics