Hello Jim and Maurice,
have hoped that you both chime in. And thank you both for your thoughts about this sword. So it's most probable a in Solingen worked blade for the VOC when I understand you both correct. But I don't understand why it has the mark from Middelburg.
I've contacted the seller and he told me that it was a different sword where the broken piece of the handle was still present. By this sword seems the broken piece not present anymore but hope that it can be restored in a proper way. Like Maurice I think that the hilt has had originally the form of the "type III handle" in Maurices great article and it should be possible to restore this sword handle. We will see.
Best regards,
Detlef