I have been looking for a manual for the 132k6 myself and would be quite willing to pay a reasonable price for an original or copy.
I am a retired sewing machine dealer. Started as an apprentice mechanic in 1942 and have experience on many types of machines, industrial and domestic. The first machines I worked on were the 31k15, 81k3, 111w 138w etc. which were quite modern then. As it was during WW2 it was very difficult obtaining parts (even needles) so we had to really ' make do and mend'
I have a lot of manuals and reference material collected over the years and hope to contribute to your site.
Dandybob