Here's what I found out about it. Scroll down & you will find a brief history of the machine & the company. There is very little on the internet about these machines. Other sites are below the brief history site. I didn't see your serial # in any of these sites but it looks like you struck gold!
http://www.sewalot.com/hengstenberg_machine_history.htm
http://www.sewmuse.co.uk/Hengstenberg%20&%20Co.htm
http://needlebar.org/cm/thumbnails.php?album=199
Last edited by osewme; 04-02-2017 at 03:05 PM.