Trudy

My dad has a Durkopp-Originale 18 leather sewing machine, probably produced in the 1930ies. My dad has been using this machine regularly, but he recently lost the bobbin case. He asked me to help him to find a replacement. I contacted Durkopp-Adler, but they do not have this part. Can you help or do you know where to start? I have attached photos of the spool house from a very old manual and a photo of a similar bobbincase from a different, larger machine, plus the manual of the Durkopp-Originale 18.

Any help with this would be much appreciated!