You can keep looking, but it's possible I have the rest of that sword. As a kid we lived down the street from the town dump. Sunday nights was our prime time to go dump picking... As they say one man's trash - is another man's (or kid's) treasure. One of those treasured finds for me was a sword. I just recently did some online searches for the sword which I found at the town dump in Andover, MA over 50 years ago. In that search I found this picture...
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which is a match to mine...
View attachment 421108However as you can see mine was missing the handle and pommel, so at the time I made a handle for it as best a kid could do without the internet to actually research what it should look like.
The sword itself has some pitting on it with one side looking partly smoother than the rest, like it was underwater for a while with the end stuck in the mud. So I figure it's possible over 50 years ago someone from Minnesota found the main part of the sword, then moved to Andover, and when he passed, if he had a collection the family may have sold his collection but tossed this one, since it didn't have a handle. From the picture of the sword on auction, the pommel is the same design as your find...
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It's possible!