This is probably a long shot, but there's a picture of one of my father's aunts playnig the mandolin and I'd be interested to know if it's at all identifiable (I think you can click the picture to expand). Not a great picture but I think the only one we have.
For context, this is probably late 40s/early 50s in Puerto Rico. I think it's neat that I ended up playing the violin and mandolin without knowing about this though.
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