As a musician, i like to think i know my way around guitars, but when i noticed Carla Bozulich's guitar i was a bit stumped.

The square middle pickup like-thing?, and the dial that looks like a vintage refrigerator switch. I've never seen anything like it, ill assume its a rare jazz guitar, it sounds great so id like to know more.

The guitar is clearly seen here:

also here is a picture:

and again, the name is Carla Bozulich
Thank you in advance.
Pretty sure its a Hagstrom from @1963.


If you scroll down on the page I linked to, you'll see a 1963 Kent and Hagstrom side-by-side, and I think that the Hagstrom looks closest to what she's playing.
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