I recently picked up this machine from a very lovely older gentlemen. He has serviced industrial sewing machines all his working live and now that he's retired, cleans, restore and sells machines.
It runs like an absolute dream and is in working order.
I have done a few headstall parts on it and repaired fender straps. It lays down a lovely stitch with whatever thread you feed it.
The adler name is still vaguely on the body but i could not get it in a picture.
But other than the engraved number i have nothing to go on.
I think its a class 5.
Any help and manual would be much appreciated.
https://photos.app.goo.gl/weFqsAbWfPeHWa5LA
https://photos.app.goo.gl/mX9cSWNWHQQofZ2K7