Seller thinks it's a mandocello, but it ain't. Only 6 tuners!
https://www.ebay.com/itm/1913-Vega-C...%257Ciid%253A1
Vega made a 4-string tenor lute, but I didn't know there was a 6-string version. I've heard of tenors with doubled upper courses, but judging from the nut, this one was meant to have doubled lower courses. One could always replace the nut, or play it as a 4-string, the way it's set up now.
The 4-string version had a banjo-style headstock; here are two of them in action:
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